Diving in Gulf of Thailand
Quick Facts
- • Entry types: Mostly shore entries
- • Expect: Varies by conditions visibility
- • Highlights: Discover Gulf of Thailand's dive spots
Explore the underwater wonders of Gulf of Thailand, ecoregion. This region features 100 documented dive spots, each offering unique underwater experiences. Whether you're seeking calm snorkeling bays, challenging freediving depths, or exciting scuba adventures, Gulf of Thailand has something for every underwater explorer. Browse detailed spot information, check current conditions from recent dive logs, and connect with the local diving community to make the most of your visit.
Regional Context
🏛️ Marine Hierarchy
🌍 Associated Countries
Countries in Gulf of Thailand (6)
Popular Spots in Gulf of Thailand (100+ spots)
Ao Khai, Koh Chan อ่าวไข่, เกาะจาน
Ao Khai, located on Koh Chan, is a dive site approximately 40 minutes from Samaesan fishing village. This site is easily accessible from the shore and is suitable for both snorkelers and entry-level divers. The reef begins at a depth of 3 meters and reaches a maximum depth of around 15 meters. The area is known for its abundant marine life, with frequent sightings of Hawksbill turtles, blue-spotted rays, and various species of puffer fish throughout the year.
Ao Kruad
Ao Kruad is located on the northeast side of Koh Talu and is accessible from the shore. This dive site features a depth range of 2 to 7 meters, making it suitable for snorkelers, free divers, and scuba divers. Divers can enjoy bottom times of 30 to 60 minutes due to the shallow nature of the site. The underwater landscape is characterized by various species of hard corals, including brain coral, stag horn coral, lettuce coral, flower pot coral, and sea anemones.
Ao Mook
Ao Mook is a dive site characterized by a rich reef ecosystem located within a small cove. The site is accessible for snorkelers, free divers, and scuba divers, with depths ranging from 2 meters to 7 meters. The entry to the site is from the shore, allowing for easy access. The reef is home to various marine life, including hard corals, staghorn corals, anemones, brain corals, and pink skunk clownfish. Additionally, there is a coral plantation present, contributing to the biodiversity of the area.
Ao Tien
Ao Tien is a dive site characterized by depths ranging from 3 to 10 meters, making it accessible for divers of all levels, particularly suitable for training dives. The site features a sand bar located at 3 to 5 meters adjacent to a reef. Divers can expect to encounter a variety of hard coral species, including staghorn coral, flower pot coral, brain coral, and anemones. Additionally, the area is home to numerous rabbit sea slugs, contributing to the site's biodiversity.
Ao Wong Duen
Ao Wong Duen is located approximately 9 kilometers from Samaesan pier, making it easily accessible for divers and snorkelers. The dive site features a reef that begins at a depth of 3 meters and extends to 10 meters, with a sandy slope leading down to 16 meters. Divers can explore various hard coral formations, including brain coral, maze coral, and table coral. The area is home to a diverse range of marine life, such as xeno crabs, boxfish, wrasse, anemone fish, and rabbitfish.
Ao Yui
Ao Yui is located approximately 3 km from the pier and offers a shore entry for divers. The dive site features hard coral formations at depths ranging from 5 to 12 meters, depending on tidal conditions. Beyond this depth, the area transitions into sandy bottoms that are rich in macro marine life. The site is situated on Samaesarn Island, allowing for drift diving during rising or falling tides, which is recommended for advanced divers. Notable marine species include various nudibranchs such as Costasiella, Janolus, Doto, and Bornella cf. adamii, along with seahorses that can be found on pencil urchins or resting on the sand.
Aow Leuk
Aow Leuk is situated on the southeastern part of the island, featuring shallow waters ideal for training dives and buoyancy practice. The site is well-sheltered, providing a calm diving environment with minimal wave action. Divers can expect to encounter a variety of marine life, including schools of catfish, rabbitfish, parrotfish, stingrays, triggerfish, and pink anemonefish.
Aow Leuk Bay
Aow Leuk Bay features calm waters suitable for beginner divers. The maximum depth is 15 meters, with two sections connected by a sandy area. Divers can see various coral formations, including anemones and brain corals, along with marine life such as groupers, rays, moray eels, and occasional blacktip reef sharks.
Aow Lok Gum / อ่าวลกกำ
Aow Lok Gum is a tranquil beach area located near TongTomYai Homestay. This site offers shore entry for divers and snorkelers. Marine life includes various species such as grouper, puffer fish, and box fish. Additionally, divers may encounter squid eggs and colorful seahorses in the surrounding waters.
Aow ThongTom / อ่าวท้องตม (ท่าเรือ)
Aow Thong Tom is situated in Tong Tom Yai Village, Chumphon Province, serving as a departure point for boat trips to various snorkeling locations, including Koh Mad Wai Yai, Koh Kula, and Koh Rang Banthat, among approximately 13 other islands. The site is frequented by local fishermen who target squid and is known for its diverse marine life, including eagle fish, barracuda, grouper, butterfly fish, seahorse, and larger fish species. When visibility is optimal, it becomes an appealing spot for diving and snorkeling activities.
Back Door
Back Door is located at the northern end of M’pai Bay and is accessible via a short boat ride of less than 10 minutes to the mooring buoy. Divers can easily descend using the provided line. The site reaches a maximum depth of 14 meters and typically experiences little to no current. Notable features include a concrete block that often attracts pufferfish, along with a large gorgonian and various schools of fish. The surrounding reef is characterized by a dense arrangement of both soft and hard corals.
Ban Pla Aow TongTom (Artificial)/ บ้านปลา อ่าวท้องตม
Ban Pla Aow TongTom, located in Tong Tom Bay, features an artificial reef constructed using local knowledge. This site serves as a habitat for juvenile aquatic species, contributing to the local ecosystem and providing a sustainable food source for the community. The site is situated near the TongTom Yai Community Diving Center in the Sawi District of Chumphon Province. Divers can access the site from the shore, making it convenient for both novice and experienced divers. The community actively maintains and manages this artificial reef, which serves as a model for similar initiatives in coastal areas.
Banana bay
Banana Bay offers a diverse diving experience suitable for both novice and experienced divers. The site features areas ideal for training as well as sections that are conducive to drift diving. Underwater, divers can observe a variety of marine life, including barracuda, angelfish, blue-spotted stingrays, and scorpion fish. The reef is primarily composed of hard corals, with some soft corals present, providing a habitat for the diverse fish species.
Barracuda point
Barracuda Point is located approximately 50 minutes by boat from M’pai Bay. The dive site begins in shallow waters with a combination of rocky and sandy substrates, gradually leading to a coral reef rich in marine life. Divers can expect to encounter various species of reef fish, barracuda, stingrays, and octopus in the sandy areas. The reef is also home to a diverse array of nudibranchs and crabs.
Boran Beach
Boran Beach is located near the Samaesarn pier and provides a shore entry point for divers. The site features a sandy bottom that extends from shallow depths to deeper areas, making it suitable for beginners in both freediving and scuba diving. Divers can practice buoyancy control in the sandy regions while exploring hard corals in the shallower parts. Marine life includes various local fish, nudibranchs, and crabs, enhancing the underwater experience.
Buddha Rock
Buddha Rock is a dive site near Chalok Baan Kao, Koh Tao, with a maximum depth of 14 meters (46 feet). Entry can be made from the shore or by boat, and divers can expect to see various tropical fish, including yellow goatfish, gobies, bannerfish, angelfish, parrotfish, and groupers, along with colorful coral formations. The site is suitable for all divers due to the lack of strong currents.
Buom Island (MPA)
Buom Island is characterized by large boulders that resemble houses, creating a unique underwater landscape. The site is home to a variety of marine life, including numerous Angel Fish, different species of grouper, and schools of snappers and fusiliers. Divers can explore various depths, with shallow areas leading to deeper sections, and the presence of both soft and hard corals, along with whip and harp corals, enhances the biodiversity of the site. The entry to this dive site is from the shore, providing easy access to the diverse underwater features.
Buoyancy World
Buoyancy World is a dive site with depths ranging from 10 meters to 16 meters. Divers typically prefer the shallower areas to practice and refine their buoyancy control skills. The site features artificial reef structures that provide habitat for various marine life, including bottom-dwelling species such as Red Breasted Wrasse, along with numerous fish and nudibranchs that can be found among the reef.
Chalok Bay
Chalok Bay features a gradual sloping coral reef that is accessible from the shore. The site is known for its clear waters and is suitable for beginner divers, particularly at the Hin Taa Toh dive site located at the deeper edge of the bay. Divers can expect to see a variety of marine life, including hard and soft corals, large schools of fish, turtles, crabs, and nudibranchs. The consistent conditions make it an ideal location for both snorkeling and scuba diving.
Chip Chip Wreck
The Chip Chip Wreck is situated approximately 90 minutes west of Koh Tao. This dive site is characterized as a deep dive, making it suitable for divers with at least an Advanced certification. The wreck was identified when a fishing vessel's anchor became entangled. Divers can expect to encounter large schools of Barracuda and Batfish in the open ocean environment, with the possibility of observing larger marine species passing by.
Chong Talu
Chong Talu is a dive site located at the northern tip of the island, with depths ranging from 7 to 15 meters. This site is suitable for experienced divers due to the potential for strong currents. Divers should exercise caution while exploring. The underwater environment is characterized by a variety of hard corals, including stag horn coral, flower pot coral, and brain coral. Additionally, divers may encounter anemones and the occasional whale shark in this area.
Chumphon Pinnacle
Chumphon Pinnacle features a prominent underwater formation that rises to a depth of 14 meters, with the deepest areas reaching down to 45 meters. This site accommodates divers of various skill levels, from Open Water to Extended Range. Marine life includes whale sharks, large schools of barracuda, and fusiliers, alongside snappers and rainbow runners that are often seen hunting. Additionally, divers can observe Malabar groupers, expansive anemone fields, and a variety of fish such as angelfish, bannerfish, and triggerfish, as well as dancing shrimp.
Chumphon Pinnacle
Chumphon Pinnacle features a large granite pinnacle with several smaller ones nearby. The top of the main pinnacle is at a depth of 14 meters, while the bottom reaches 36 meters. Marine life includes anemonefish, batfish, barracudas, giant groupers, scorpionfish, moray eels, and various shrimps.
Cobia Cave
Cobia Cave features an overhang at a depth of 13.5 meters along the fringing coral reef. The rock formations provide shelter for various marine life, with critters often found hiding in the crevices. A small fishing boat, which sank some time ago, is also present at the site. Divers may encounter cobia fish and schools of barracuda, while batfish and angelfish are commonly seen around the rock cracks. Occasionally, larger tusk fish and sweetlips can be spotted as well.
Construction Artificial Reef
The Construction Artificial Reef is situated in the bay of Chaloklum, featuring four artificial reefs at a depth of 18 meters. While visibility can vary, the optimal diving period is from March to October. Divers can expect to encounter a variety of marine life, including schools of barracudas, snapper, batfish, big eye trevally, and grouper, along with soft corals, sea fans, and mussels.
Coral Garden
Coral Garden is a recently rediscovered dive site featuring a diverse array of hard corals, soft corals, sponges, and whip corals. The site reaches a maximum depth of 15 meters and is accessible by boat, making it suitable for divers of all experience levels. Among the whip corals, divers can observe various marine life, including camouflaged pipefish, clownfish, parrotfish, groupers, and the occasional stingray.
Corner bar
Corner Bar is situated at Koh Koun, an uninhabited island near M’pai Bay. The dive site is accessible via a shore entry, with a mooring buoy located less than 10 minutes away. Divers can utilize a descent line for easy access to the underwater environment. The site is home to numerous schools of fusiliers, juvenile barracuda, and a variety of colorful reef fish. Additionally, divers can observe nudibranchs and various crustaceans in the area.
Corral
Corral is a small bay known for its muck diving opportunities, particularly at night. The site features a shallow reef that transitions to deeper waters on the outer edges. It is recognized as the only muck dive site in the vicinity. Divers can expect to encounter a variety of marine life, including octopus, seahorses, pipefish, rays, scorpionfish, and Indian walkers. Additionally, the area is home to nudibranchs and various mollusks, contributing to its rich biodiversity.
Crabby
Crabby dive site features a sandy area adjacent to rocky formations, with a diverse underwater landscape. The maximum depth reaches 12 meters, and divers can encounter a variety of marine life including octopus, stingrays, and numerous fish species. The reef area is particularly rich in nudibranchs and is characterized by rocks adorned with corals. A slight current may be present, which divers should be aware of during their dive.
Crystal Bay
Crystal Bay features diving and snorkeling opportunities along granite boulders located at both ends of the site. The area includes small coral reef patches that support a diverse range of marine life. Divers can expect to see numerous schools of fish, along with smaller creatures such as crabs and shrimp. The site is accessible from the shore, making it convenient for both divers and snorkelers.
D-Haus
D-Haus is a shallow indoor pool located beneath the D-Haus Apartment. Access is available via public transportation to MRT Huaykwang station, followed by a motorcycle taxi ride to Ladprao 48 street. The maximum depth of the pool is 2.4 meters. This site does not host any wildlife, as it is purely a swimming pool environment. Water conditions are generally good, and facilities include a toilet and a restaurant for convenience.
Dry Rock North Phu Quoc
Dry Rock North is a small cluster of rocks situated at the maritime boundary between Vietnam and Cambodia. The dive site features depths ranging from 10 to 15 meters, with the bottom easily accessible. The area experiences currents, making it suitable for divers who are comfortable with such conditions. The underwater landscape includes a diverse array of hard and soft corals, providing a colorful habitat. Divers can enjoy a brief drift with the currents to observe fan corals and the rich marine life that inhabits the reef surrounding the rocks.
Finger Nail (Marine Park)
Finger Nail, also known as Dăm ngoài, features a reef structure that descends to a maximum depth of 18 meters. The site is characterized by a diverse array of both soft and hard corals. Divers can expect to encounter numerous small macro creatures, making it beneficial to have a reliable identification guide on hand.
Gầm Ghì West
Gầm Ghì West is a shallow coral reef that extends to a depth of 12 meters, making it accessible for divers of all experience levels. The site is characterized by an abundance of nudibranchs and various small reef fish, with groupers also frequently observed. It serves as a suitable location to seek shelter from adverse weather conditions. The site is also appropriate for snorkeling and introductory dives, with depths generally remaining at or below 10 meters.
Haad Yao
Haad Yao offers excellent shallow beach diving opportunities, ideal for both diver training and snorkeling. The site features a diverse array of colorful corals, including table corals, barrel sponges, and brain corals. The shallow reef extends towards a wall drop-off, which occurs at depths between 10 meters and 16 meters. The changing sea conditions contribute to a rich variety of marine life, with sightings of sea turtles, blue-spotted rays, porcupine fish, parrotfish, squirrelfish, barracuda, and nudibranchs commonly reported.
Hardeep Wreck
The Hardeep Wreck, also known as the Suddhadib, is located south of Pattaya at a depth of 25 meters (82 feet). The wreck is 64 meters (210 feet) long and has been submerged since World War II. Strong currents and often low visibility make this site suitable for experienced divers only.
Hardeep Wreck (SS Suddhadib) เรือจมสุทธาทิพย์
The Hardeep Wreck, also known as the SS Suddhadib, is a notable dive site located in Samaesarn. This steam cargo ship was sunk on June 1, 1945, during World War II and currently rests on its starboard side at a depth of 27 meters. Divers can expect to encounter a variety of marine life including marble rays, nudibranchs, turtles, angelfish, pufferfish, porcupinefish, and scorpionfish. The site is accessible from the shore.
Hin ao yai
Hin Ao Yai is suitable for both novice and experienced divers. The site features areas ideal for training as well as sections that are perfect for drift diving. The depth reaches approximately 8 meters, providing opportunities to observe marine life such as turtles, barracuda, and cobia. Additionally, divers can appreciate the presence of impressive fan corals.
Hin Gra Dueng Pinnacle (หินกระเดื่อง)
Hin Gra Dueng Pinnacle is characterized by a cluster of rocks that nearly break the surface, resembling a mortar and pestle. This site is located on the northern side of Koh Rang, where visibility tends to be limited. Divers can encounter numerous schools of yellowfin stingrays and a variety of sea urchins. The site is suitable for both novice and experienced divers, making it accessible for a wide range of skill levels.
Hin Lak Ngam : หินหลักง่าม
Hin Lak Ngam is situated in the southeastern region of Koh Ngam Noi, near the H.T.M.S. Prab wreck dive site. This dive location features a rock formation that is visible at the water's surface. The dive depths range from approximately 5 to 20 meters, with a maximum depth reaching 25 meters. Marine life commonly observed here includes black coral, sea anemones, clownfish, parrotfish, triggerfish, seahorses, nudibranchs, turtles, and crocodile toothfish. Additionally, divers may encounter barracuda, stingrays, and even whale sharks in this area. The site is accessible via shore entry.
Hin Ngam Bay
Hin Ngam Bay is a shallow dive site suitable for divers of all levels, with depths ranging from 5 to 18 meters. Visibility typically ranges from 10 to 25 meters, and divers can encounter marine life such as shrimps, scorpionfish, pipefish, and porcupine pufferfish. The site features three pinnacles and is often used as a starting point for drift dives to Aow Leuk.
Hin Pae หินแพ
Hin Pae is located on the northern side of Koh Ngam Yai, featuring two rock peaks that rise from the water, with depths ranging from 6 to 23 meters. The site includes underwater caves that provide habitat for a diverse range of fish species. Marine life commonly observed here includes sea anemones, black corals, sea whips, giant clams, butterflyfish, barracudas, stingrays, turtles, groupers, and even whale sharks.
Hin Pee Wee
Hin Pee Wee features significant rock formations and smaller pinnacles, with the shallowest area reaching approximately 7 meters and depths extending beyond 22 meters. The site is characterized by an abundance of soft corals and whip corals. Divers limited to depths of 12 meters may find fewer marine life encounters. Notable marine species include nudibranchs, scorpion fish, rays, porcupine puffers, and schools of trevally. Turtles, pipefish, sawblade shrimp, and squid are also frequently observed. This site is located near the HTMS Sattakut wreck, allowing for both sites to be explored during a single dive. Access to Hin Pee Wee is by boat.
Hin Pee Wee
Hin Pee Wee is a dive site off the northwest coast of Koh Tao, featuring three pinnacles, the largest at approximately 7 meters in length. Divers can encounter hard and soft corals, as well as marine life such as moray eels, stingrays, porcupine fish, barracudas, green sea turtles, and Jenkins rays. This site is accessible by boat.
Hin Pleng East
Hin Pleng East, also known as Rayong Pinnacle or Alhambra Rock, features two prominent pinnacles, the west and east. This dive site is characterized by a diverse array of coral species and is home to various marine life. Commonly observed species include yellow snapper, barracuda, nudibranchs, saw blade shrimp, and razor fish. Divers may also have the opportunity to encounter whale sharks in this area. The site is accessible from the shore.
Hin Pleng West
Hin Pleng West, also referred to as Alhambra Rock, is part of the well-known Rayong Pinnacle dive sites, featuring two distinct pinnacles: west and east. The site is characterized by a diverse array of coral species and is frequented by various fish species. Common marine life includes yellow snapper, barracuda, nudibranchs, saw blade shrimp, and razorfish. Divers may also have the opportunity to encounter whale sharks in this area. The entry to the site is from the shore, making it accessible for divers looking to explore its underwater features.
Hin Pueng
Hin Pueng, also known as Alhambra Rock, features two main sections: West Alhambra Rock and East Alhambra Rock. The West side has a prominent wall with diverse marine life including Frog Fish, Pufferfish, and Moray Eels, while the East side offers schools of smaller fish. A full dive of the site may require two trips.
Hin Ta หินตา
Hin Ta, also known as Grandfather Rock, is situated to the south of Khram Yai Island. The site features a distinctive rock formation resembling a horseshoe shape, with a small white sandy beach that becomes visible during low tide. This dive site is suitable for beginner to intermediate divers, offering opportunities to observe small marine creatures along the wall and sandy bottom. Sea turtles are frequently spotted in this area.
Hin Wong Bay
Hin Wong Bay is located northeast of Koh Tao, with a maximum depth of 18 meters (59 feet). The site features diverse marine life, including triggerfish, fusiliers, emperorfish, and occasional reef sharks, and offers various dive options, including a cave dive in the southern part of the bay. Water temperatures average around 27 degrees Celsius (80 degrees Fahrenheit) year-round.
Hin Wong Pinnacle
Hin Wong Pinnacle is situated on the eastern side of Koh Tao, near Hinwon Bay. This dive site is recommended for divers with intermediate experience or higher due to the often strong currents. The main rock formation is relatively small, but the dive area is expansive with several scattered rocks. Divers can expect to see larger fish species such as horse mackerel and bluefin tuna, along with hornets. The main rock features an overhang, and divers can explore the crevices between the rock and sandy bottom, where various macroscopic fish, including crocodiles and different shrimp species, can be observed.
Hin Wong Pinnacle
Hin Wong Pinnacle is suitable for intermediate divers, with depths ranging from 15 to 40 meters. The site features fan corals, large boulders, and a variety of marine life including groupers, snappers, and blue spotted stingrays. Be prepared for unpredictable currents and visibility.
Hin Yai หินยาย
Hin Yai, also known as Grandmother Rock, is situated at the southern tip of Koh Khram Yai, near Hin Ta. This dive site is notable for its diverse marine life, particularly small creatures like Nudibranchs. Additionally, divers can encounter various species of fish, including butterfly fish, groupers, and barracudas. Sea turtles are also frequently observed in this area. The entry to the site is from the shore, making it accessible for divers looking to explore its underwater ecosystem.
Home Run
The HTMS Sattakut is a 48-meter wreck at a depth of 30 meters off Koh Tao, serving as an artificial reef. Divers can explore the intact ship, which is home to various marine life. The site is accessible by boat.
Hon Bang
Hon Bang is a small island characterized by a shallow reef that forms around its rocky structure. The site is accessible via a shore entry and is located approximately 15 minutes from Ganh Dau Beach in northern Phu Quoc. The average depth ranges from 5 to 15 meters, making it suitable for divers of various skill levels. The underwater environment features a diverse array of marine life, including massive hard coral formations, sea whips, fan corals, harp corals, and soft corals. Divers can expect to encounter schools of small fish such as damselfish, fusiliers, groupers, and glassfish, as well as Furneris nudibranchs in the area.
HTMS Chang Wreck
The HTMS Chang wreck is the largest recreational wreck diving site in the Gulf of Thailand, measuring 100 meters in length and resting at a depth of approximately 30 meters. This site is suitable for wreck penetration dives, offering divers the opportunity to explore its structure. The area is home to a diverse array of marine life, including large schools of jacks, barracudas, yellowtails, and snappers. Additionally, divers may encounter nudibranchs, rays, and scorpionfish, making it a rich environment for underwater observation.
HTMS Hanhak Sattru 312, Wreck
The HTMS Hanhak Sattru 312 is a recently submerged wreck measuring 44.9 meters in length and 7 meters in width. This high-speed attack vessel was part of the Gulf Patrol Fleet of the Royal Thai Navy and was constructed by Singapore Ship Building and Engineering Co., Ltd. The wreck is situated approximately 60 meters north of Laem Thian, resting in about 23 meters of water, with its mast extending to a depth of around 13 meters. This site is comparable to the HTMS Suphairin 313, which is located in No Name Bay.
HTMS Khram
The HTMS Khram is a wreck dive located near Koh Phai in the Pattaya Far Islands. This site is accessible by boat and features ascent and descent lines connected to the wreck. The maximum depth reaches 28 meters. From November to March, divers can expect favorable conditions with visibility ranging from 8 meters to as much as 30 meters. Marine life commonly observed here includes sting rays, bat fish, scorpion fish, sweet lips, and occasionally, hawksbill turtles and large schools of barracudas.
HTMS Prab 741, Wreck
The HTMS Prab 741 is an intentionally scuttled wreck located south of Ngam Noi Island, resting at a depth of 24 meters on the seabed. The site features two cannons positioned at both the stern and the bow, with a bridge situated centrally on the ship. Divers may encounter schools of barracudas and, on occasion, whale sharks in the surrounding waters. The wreck is accessible for penetration, but this is recommended only for advanced divers due to the need for careful management of no-decompression limits.
HTMS Sattakut 742, Wreck
The HTMS Sattakut is a wreck located at a maximum depth of 35 meters, with its tower reaching up to 18 meters. This 48-meter long vessel is situated just south of Hin Pee Wee, a nearby pinnacle dive site often used for safety and decompression stops after exploring the wreck. Divers can observe various marine life, including large Sweetlips, schools of Fusiliers, and occasionally, Jenkin's Whipray. The site also offers opportunities to see diverse macro life.
HTMS Suphairin 313, Wreck
The HTMS Suphairin 313 is a wreck located approximately 15 meters north of No Name Pinnacle. This high-speed attack ship measures 44.9 meters in length and 7 meters in width. It is part of the Gulf Patrol Fleet of the Royal Thai Navy and was constructed by the Singapore Ship Building and Engineering Company Limited. The wreck rests in about 26 meters of water, with its mast reaching a depth of around 11 meters. It is situated roughly 100 meters ESE of Ko Hang Tao, and is of the same class as the HTMS Hanhak Sattru 312, which is found in Aow Mao. Divers can access this site via boat.
Hua Chedi Koh Ngam Yai - Chedi Rock Koh Ngam Yai - หัวเจดีย์ เกา
Hua Chedi Koh Ngam Yai, located south of Koh Ngam Yai, features a sandy bottom at depths ranging from 8 to 16 meters. This site is suitable for initial dive checks and is often the first dive of a trip. Divers may encounter some currents around the turning point. The area is characterized by clear waters and is home to various marine life, including sea anemones, Indian clownfish, and nudibranchs. Triggerfish are prevalent here, and caution is advised when encountering them. Additionally, divers may spot the Humph fish in this environment.
Jansom Bay
Jansom Bay is situated on the western side of Nan Yuan Island, near Koh Tao. This site benefits from the island's protection, ensuring calm conditions even when the ocean is choppy. Divers can explore sandy areas where various gobies are present, alongside healthy coral teeming with diverse fish species. Notable marine life includes schools of fish, barracudas, and occasional turtle sightings.
Japanese Gardens Koh Tao
Japanese Gardens is situated on the eastern side of Koh Nanguan. This site is characterized by its calm conditions, making it suitable for divers of all levels. The sandy bottom gradually descends, reaching depths between 2 to 16 meters. Divers can explore the wall along the northern part of the island. The area is renowned for its diverse coral gardens, featuring both hard and soft corals. Marine life is abundant, with frequent sightings of various fish species, as well as the occasional blue spot ribbon tail ray and banded sea krait.
Junkyard
Junkyard is a dive site with depths ranging from 10 to 12 meters. It features various artificial structures, including a Jeep and a toilet seat, which serve as habitats for marine life. Divers are advised not to touch these items. The site is home to a variety of marine species, including common tropical fish such as angelfish, banner fish, and surgeonfish, as well as some less common species like boxfish and pufferfish.
Khom Beach
Khom Beach, situated on the northeastern headland of Chaloklum in Koh Phangan, is a small cove that offers a suitable environment for snorkeling and novice divers. The area features a shallow reef that is well-protected from strong winds and waves, fostering a diverse marine ecosystem. Divers can expect to encounter a variety of marine life, including Black-spotted porcupinefish, Titan Triggerfish, Goatfish, Groupers, Gobys, and various schools of smaller fish, as well as occasional turtle sightings. The reef is composed of both soft and hard corals, contributing to the site's rich biodiversity.
Kim Quy island
Kim Quy Island, also known as U-Turn, features a shallow coral reef that descends to a depth of 16 meters. The site is rich in marine life, with a notable presence of nudibranchs and various small reef fish. Additionally, it is home to numerous species of both soft and hard corals, including a variety of Angel fish. This location serves as a suitable refuge during inclement weather. However, it is not ideal for boat access, making it more appropriate for shore entry.
King Kong
King Kong is a secluded bay located near Aow Leuk on the southeast coast of Koh Tao. The site features a shallow coral reef, making it suitable for novice divers and snorkelers. The marine life includes a diverse range of soft and hard corals, as well as species such as yellow boxfish, harlequin sweetlips, blue-spotted stingrays, lionfish, porcupinefish, pufferfish, batfish, and turtles. The calm conditions of the area contribute to a pleasant diving experience.
Ko Kram / เกาะคราม
Ko Kram is an uninhabited small island located near the coast. The site is accessible from the shore and is recognized for its suitability for snorkeling. It features coral reefs and serves as a community fishing ground, where various fishing gear can be observed.
Ko Losin
Ko Losin is located on the eastern side of the Malay Peninsula, approximately 100 kilometers offshore, near the Thailand-Malaysia border. This isolated lighthouse reef point is accessible by boat. The area is known for sightings of whale sharks, which often approach boats at anchor and can be observed while snorkeling. Additionally, divers may encounter various species including Dragonfly Catsharks, Mobula, and Manta Rays.
Ko Ma Ping (เกาะมะปริง)
Ko Ma Ping is a small island located south of Koh Rang, characterized by its sandy surroundings. The northern side features a sandy area ideal for diving, either from the beach or within the bay. This site is suitable for divers of all levels, including beginners and experienced divers, as it offers opportunities to explore for small marine creatures in a muck dive environment.
Ko Ngam Yai เกาะง่ามใหญ่
Ko Ngam Yai is located approximately 16 kilometers from the mainland, situated in Chumphon, southern Thailand. The site is known for its ecological significance, particularly as a nesting area for swallows, which prohibits access to the nesting sites. Divers and snorkelers can observe a variety of marine life, including triggerfish, pufferfish, stingrays, flounders, and colorful dragonets. The underwater landscape features hard corals and schools of fish, making it an engaging spot for both snorkeling and diving activities.
Ko Rang Cave (เกาะรังหน้าถ้ำ)
Ko Rang Cave is situated on the western side of Koh Rang, characterized by a sloping cliff that descends into deeper waters. The site features several caves along the cliff face, with the entrance appearing as a collection of rocks and sand, providing habitat for small marine organisms. This dive site is considered easy and is suitable for beginner divers, offering a diverse range of marine life to observe.
Ko Rang North (เกาะรังด้านเหนือ)
Ko Rang North is situated on the northeast side of the island, extending gradually to the north. The site features a sandy substrate, making it ideal for beginner divers and those interested in macro photography. The sandy areas are home to a variety of small marine creatures, including numerous sea slugs, providing excellent opportunities for macro photography.
Ko Sam Phee Nong (เกาะสามพี่น้อง)
Ko Sam Phee Nong is a small island located on the western side of Koh Rang. The site features a sandy bottom with a gentle slope, making it ideal for novice divers. The area includes some coral formations, but it is primarily characterized by its sandy substrate. Due to its conditions, this site may not appeal to more experienced divers seeking challenging environments.
Ko Tae Nai
Ko Tae Nai is located approximately 10 minutes south of Thongsala. The dive site features a gently sloping reef that reaches depths of around 7 meters. An artificial coral nursery is present at this location. Divers may encounter a variety of small tropical reef fish, including bannerfish, angelfish, butterfly fish, and sergeant majors. Blue spotted stingrays are also common, and there is a possibility of spotting a turtle. Occasionally, divers may experience some current at this site.
Koh Jorakea
Koh Jorakea is a small island situated close to the coast, featuring a community fishery and mooring boats that provide shelter during the monsoon season. Underwater, divers can explore piles of rocks and small stones, along with artificial coral structures. The marine life here includes a variety of fish species, such as barracuda, eagle rays, groupers, snappers, mackerels, butterfly fish, and angelfish, which inhabit both the coral reefs and the surrounding waters. The site is accessible via shore entry.
Koh Khai : เกาะไข่ พื้นที่คุ้มครอง ทช.
Koh Khai is a small island located approximately 3 kilometers from Ban Hin Kop. The island features two short beaches on its western side and is designated as a protected area for marine and coastal resources under the Department of Marine and Coastal Resources. The shape of the beaches may vary with the seasons. The marine life around Koh Khai includes giant clams, butterfly fish, parrot fish, barracuda, and turtles. Additionally, the area serves as a rehabilitation site for community coral reefs and acts as a spawning ground for sea life on the beach.
Koh Kham
Koh Kham is a small island located just west of Koh Samaesarn, providing a diverse underwater environment suitable for divers of all skill levels. The site features warm, clear waters and white sandy beaches, making it a popular destination for nature enthusiasts. Underwater, divers can encounter a variety of marine life, including blue-spotted stingrays, nudibranchs, turtles, angelfish, pufferfish, porcupinefish, and scorpionfish. Sightings of whale sharks are also possible, adding to the site's appeal. The entry to the dive site is from the shore, allowing easy access to the underwater park.
Koh Khang Suea / เกาะคางเสือ
Koh Khang Suea is a designated bird's nest concession island with restricted access for tourists, including its beaches. The dive site offers multiple levels of diving opportunities, although specific details about the depths are not disclosed. Marine life includes various fish species, giant clams, and crabs, with proximity to local community fisheries. The site is located near the Tong Tom Yai Community Dive Center, known as TongTom Diving.
Koh Khram Noi
Koh Khram Noi is situated to the north of Koh Khram Yai. The site is characterized by diverse hard coral reefs, particularly prominent on the eastern side, and features large sponges and sea fans at the northern tip. Divers can observe significant schools of big eye sea perch and fusiliers, along with green and hawksbill turtles that frequent the area for feeding. The entry point to this dive site is from the shore.
Koh Khram Yai South
Koh Khram Yai South is located on the southern side of the island, featuring a coral reef that slopes gently from a depth of 4 meters to 8 meters. Beyond the reef, the terrain transitions to a sandy slope leading down to depths of approximately 30 meters. Divers can expect to encounter a variety of marine life, including large schools of fusiliers, soldier fish, groupers, blue-spotted stingrays, Xeno crabs, barracudas, and the occasional sea turtle.
Koh Khrock
Koh Krock, located approximately 2 kilometers from Koh Larn in Chonburi, is a private island offering divers the opportunity for hard coral dives directly from the beach. The site also features drift diving along the island's perimeter. At a depth of around 6 meters, divers may encounter turtles resting on the seabed. Additionally, the area is home to sea anemones and clownfish, providing a unique marine life experience.
Koh Kong Kliang
Koh Kong Kliang is a rocky island located west of Lighthouse Reef, offering divers a unique underwater experience. The site features large boulders and numerous cracks that provide hiding spots for various marine life. The underwater landscape is adorned with both hard and soft corals, creating a diverse habitat. At the west end of the island, a distinctive rock formation resembles a foot and is home to a variety of bird species, enhancing the ecological richness of the area. This dive site is accessible from the shore.
Koh Kong Yai
Koh Kong Yai is a notable dive site located on the northeastern side of Chaloklum Beach. The site features a maximum depth of 20 meters and presents varying underwater topography. Visibility and current conditions can be unpredictable, but when favorable, the site offers a rewarding diving experience. The southwestern side of the site is characterized by large soft corals and sea fans, where divers may encounter barracuda and batfish. In contrast, the shallower areas are home to angelfish, butterflyfish, and other similar marine species typically found around Haad Khom.
Koh Kram Yai North
Koh Kram Yai North is accessible from the shore and caters to both beginner and advanced divers. The site is known for its diverse small marine life, including Nudibranchs, seahorses, and tiger gobies. Additionally, divers may encounter larger species such as blacktip reef sharks, barracudas, groupers, pipefish, porcupine fish, batfish, sea turtles, and schools of fusiliers. The underwater environment offers a variety of habitats that support this rich biodiversity.
Koh Ku La / เกาะกุลา
Koh Ku La is a dive site located within Mu Ko Chumphon National Park, easily accessible from the shore, making it suitable for novice divers. The site features a variety of marine life including giant clams, seahorses, clownfish, parrotfish, turtles, barracudas, butterfly fish, squids, gobies, and angelfish. Divers should be aware that a national park fee is required for access.
Koh Lak Raet / เกาะหลักแรด
Koh Lak Raet is a small island known for its diverse marine life, including numerous fish species and vibrant sea anemones. The site serves as a fishing hub for local communities, which contributes to its rich underwater ecosystem. This location is accessible from the shore, making it convenient for divers to explore the surrounding waters.
Koh Ma
Koh Ma is a small island situated off the northern coast of Koh Phangan, adjacent to Mae Haad Beach. This site features a gently sloping reef that is rich in marine biodiversity. Divers and snorkelers can expect to encounter a variety of species, including lionfish, angelfish, butterfly fish, clownfish, barracudas, stingrays, schools of razorfish, seahorses, turtles, and a range of macro life. The site is accessible from the shore, making it convenient for both snorkeling and diving activities.
Koh Man Nai Jetty
Koh Man Nai Jetty is located approximately 5 kilometers from Makharm Pom Pier, directly beneath the dock of Koh Man Nai. The site features a shallow area starting at 2 meters and extending down to 8 meters, with a mix of sandy bottoms and hard coral formations. Divers can observe a variety of marine life, including seahorses, barracudas, octopuses, pipefish, crabs, snake eels, giant clams, and nudibranchs. Additionally, the nearby Sea Turtle Conservation Center offers insights into turtle research and a nursery for young turtles.
Koh Mat Wai Noi / เกาะมัดหวายน้อย
Koh Mat Wai Noi is a small island located within the Mud Wai Islands, situated close to Koh Mud Wai Yai and Kula Island. The dive site is accessible from the shore, making it convenient for divers. Marine life in the area includes various species such as gourami, gobies, butterfly fish, angelfish, snapper, grouper, sea turtles, sea slugs, cuttlefish, squid, and octopus, providing a diverse underwater experience.
Koh Mat Wai Yai เกาะมัดหวายใหญ่
Koh Mat Wai Yai is situated within Mu Koh Chumphon National Park and is known for its diverse marine life. While access to the island is restricted due to a business concession for bird nest collection, divers can explore the surrounding waters. The site is home to various species including seahorses, pipefish, razor fish, barracuda, butterfly fish, angel fish, gobies, sea turtles, and squid. The entry to the dive site is from the shore, providing an opportunity to observe these species in their natural habitat.
Koh Nen : เกาะเณร : เกาะพระน้อย
Koh Nen is located approximately 1.6 kilometers from Laem Thian Pier and 500 meters from Ko Phra. This site is near a military operations unit and is utilized for military training as well as marine resource conservation efforts. The area features shallow coral reefs that support diverse schools of fish, making it suitable for conservation diving activities organized by the Royal Thai Navy. The entry to the site is from the shore.
Koh Ngam Noi - เกาะง่ามน้อย
Koh Ngam Noi is located approximately 16 kilometers from the shore and is known for its proximity to the swallow's bird nest areas. The dive site features a variety of underwater landscapes, including walls that range from shallow to deeper sections, with sandy bottoms present. Divers may encounter triggerfish habitats and have the chance to see whale sharks, which are known to occasionally surface or swim nearby. The area is also home to hard corals, schools of fish, and anemones, providing a diverse marine environment for exploration.
Koh Ngam Noi : เกาะง่ามน้อย
Koh Ngam Noi is located 600 meters from Koh Ngam Yai and approximately 2 kilometers from Hin Phae. Divers can begin their dive at the MTMS Prab 741 wreck and conclude at Koh Ngam Noi within a single dive. The site is known for its diverse marine life, including trigger fish, barracuda, bat fish, parrot fish, butterfly fish, angelfish, clown fish, grouper, black-spotted sea bass, stingrays, pipe fish, cuttlefish, and nudibranchs. The entry to the dive site is from the shore.
Koh Rang Ban That / เกาะรางบรรทัด
Koh Rang Ban That is located near a small island featuring a lighthouse that aids in navigation for boats during nighttime. This site is part of Mu Ko Chumphon National Park and serves as a fishing destination, attracting local fishermen. Divers may encounter fish traps situated close to the coral reefs. Additionally, long-tail boats are often seen in the area, utilizing lines and hooks to catch barracuda.
Koh Rangka Chio / เกาะรังกาจิว
Koh Rangka Chio is situated within Mu Ko Chumphon National Park, where an entrance fee of 40 baht applies for locals and 200 baht for foreigners, with free entry for the elderly. The site is notable for its seagrass beds and serves as a spawning ground for sea turtles. A turtle hatching station is present on the island, along with a caretaker to oversee the area. Marine life includes various species of butterfly fish and the occasional sighting of turtles, making it a significant ecological location.
Koh Rin East
Koh Rin East is part of the Far Islands Group, which includes North Rock, South Rock, Manwichai Island, and Klueng Badan Island. This site features a large sandy area within the bay, making it suitable for beginner divers. Additionally, the outer side of the reef near the corner offers interesting diving opportunities. The site is accessible via shore entry.
Koh Rin North
Koh Rin North is located on the northern side of Koh Rin and is recognized as a favored site for open water training. It is particularly recommended for diving during the southwest monsoon season. The site is home to a variety of marine life, including gobies, seahorses, pipefish, blacktip reef sharks, barracudas, nudibranchs, batfish, green turtles, and hawksbill turtles.
Koh Rin West
Koh Rin West is accessible from the shore and is suitable for divers during the northeastern monsoon season. The site features a coral reef where divers can explore various marine life. Notable species include numerous nudibranchs, schools of soldier fish, blue spotted stingrays, nurse sharks, and black tip reef sharks. The area provides opportunities for both snorkeling and fun diving, particularly around the corners of the reef where larger fish can be observed.
Koh Rong Nang เกาะโรงหนัง
Koh Rong Nang is a dive site located off a small island, featuring two diveable sides. The site has a slope that descends from the island to a flat seabed at a depth of 18 meters. Divers should note that during flood currents, the recommended direction is west, while ebb currents suggest diving east. Marine life includes occasional sightings of whale sharks, along with a variety of reef fish and nudibranchs, particularly around the rocks at depths of 18 meters and 21 meters.