🇬🇺Snorkeling, Freediving, and Scuba in Guam
Quick Facts
- • Best season: Year-round (varies by region)
- • Typical visibility: 10-30m depending on location
- • Entry types: Shore diving, Boat diving
- • Highlights: Explore Guam's underwater world
Welcome to the ultimate guide for snorkeling, freediving, and scuba diving in Guam. With 68 documented dive spots across 4 regions, Guam offers diverse underwater experiences for all skill levels. From vibrant coral reefs to mysterious wrecks, from shallow snorkeling bays to deep freediving drops, discover what makes Guam a must-visit destination for underwater enthusiasts. Our community-driven platform provides real-time conditions, detailed spot information, and local insights to help you plan your perfect diving adventure.
Regions in Guam (4)
Dive Spots in Guam (68)
Agana Bay
Agana Bay is a dive site characterized by a diverse array of hard and soft corals, providing habitat for a variety of reef fish. The site is typically accessed by boat and is known for its drift diving conditions. Divers can expect to encounter turtles on most dives, adding to the site's marine life appeal.
13.4842, 144.7587
Alupat Island
Alupat Island offers a dive site characterized by a variety of hard and soft corals, supporting a diverse population of reef fish. The visibility is generally good, making it suitable for underwater exploration. Manta Rays are frequently observed, particularly during early morning hours and in the spring and fall seasons. Turtles are commonly seen on most dives, and dolphins are also a regular sighting in the area. This site is primarily accessed by boat, making it a convenient location for divers looking to experience its underwater life.
13.4928, 144.7684
American Tanker (Wreck)
The American Tanker is a substantial concrete barge that served as a fuel transport vessel during World War II, specifically moving fuel from the United States to Guam. It is one of five similar barges that were brought to the area, with remnants of the others visible along the breakwater. This dive site is accessible by boat and is suitable for divers of all experience levels. While exploring the wreck, divers can observe butterfly and damsel fish that often accompany them. Macro photographers may find interest in the skeleton shrimp that inhabit the clear tunicates found scattered around the wreck.
13.4597, 144.6332
Amphitheater - Guam
Amphitheater, located off Cabras Island, is a boat dive site with depths ranging from 30 to over 130 feet. The site features a natural curvature in the drop-off, showcasing a variety of deep water corals and diverse marine life. Visibility can reach up to 200 feet, making it a favored location for underwater photography. While all divers can explore the shallower reef areas, the deeper walls are recommended for advanced and technical divers. Notable marine life includes large Napoleon Wrasses, sharks, rays, and garden eels that inhabit the sandy slopes.
13.4648, 144.6708
Amtrak
The Amtrak site is situated near the Agat Cemetery and features a WWII personnel carrier resting at a depth of 15 meters (50 feet). The area is surrounded by a colorful reef and sand flats, providing a diverse underwater landscape. This site is frequented by both shore and boat divers. Additionally, spinner dolphins are often observed in the vicinity, and while they may approach divers, it is advised not to chase them.
13.3873, 144.6509
Anae Caverns
Anae Caverns offers a unique diving experience characterized by spacious caverns featuring side openings and exits. This site is accessible from the shore and does not require prior cavern diving experience. Divers can observe a variety of small reef fish, including schooling Butterfly Fish, Angel Fish, and Tangs. Needle Fish are often seen at the surface, following divers, but it is advised not to feed them. The adjacent site, Coral Gardens, also provides opportunities for snorkeling and kayaking.
13.3565, 144.6370
Asan Cut
Asan Cut is characterized by hard coral islands surrounded by sandy flats, providing habitat for various reef fish. This site also attracts turtles, rays, and spinner dolphins. A notable feature is a World War II landing craft located to the north at a depth of approximately 60 feet. Access to the beach can be challenging depending on wind and sea conditions, and it is advised not to attempt entry during high surf.
13.4751, 144.7150
Barge Reef
Barge Reef is a shore entry dive site located at coordinates 13.461500, 144.634800. The site features remnants of barges that were placed here during the construction of the Glass Breakwater in the mid-1940s. Divers can explore a variety of marine life, including small to medium-sized reef fish, as well as large elephant ear sponges. The area is adorned with both soft and hard corals, providing a habitat for diverse aquatic species. Common sightings include green and hawksbill turtles, along with eels and octopus, making this a rich environment for underwater observation.
13.4615, 144.6348
Barracuda Rock - Guam
Barracuda Rock is situated along the Orote Peninsula and is accessible via shore entry. The dive site features a depth range from shallow areas to an average depth of 45 feet, extending beyond 100 feet in certain locations. Divers may encounter a variety of marine life, including approximately a dozen Green Sea Turtles. Additionally, White-tip and Black-tip reef sharks are commonly observed during dives. While barracuda sightings occur, they are less frequent than in previous years.
13.4337, 144.6329
Big Blue
Big Blue features a sloping reef that descends from the surface to depths exceeding 40 meters. The site is characterized by a diverse array of hard corals and is frequented by various reef fish. Common marine life includes Large Map Pufferfish, Hawksbill and Green Sea Turtles, as well as Black-Tip Sharks, particularly in the shallower areas. Visibility is generally good, making it suitable for divers of all experience levels, including beginners.
13.5092, 144.7851
Bile Bay
Bile Bay is a dive site located near Merizo, featuring depths ranging from 10 to 60 feet. The area is characterized by large caverns and is frequented by pods of spinner dolphins, which are typically observed in the mornings. This site supports a diverse range of reef fish, making it suitable for divers of all experience levels. While it can be accessed from shore, it is recommended to seek permission from the landowner. A drift dive from a boat is considered the optimal way to explore this location.
13.2764, 144.6617
Black Coral Kingdom
Black Coral Kingdom is a deep wall dive characterized by an upper reef that features an abundance of sea whips, fans, and black coral. The site is known for its tunnels and caves, providing a complex underwater landscape. Divers can expect to encounter large pelagic species, including sharks and tuna. The extreme depths and strong currents present at this location make it suitable exclusively for technical divers.
13.3436, 144.6336
Blue & White
Blue & White features a clear water drop-off located just outside the Glass Breakwater. The upper reef flats begin at a depth of 30 feet, leading to a steep drop-off. Access to this site is exclusively by boat, and divers should be aware of the potential for strong currents. The area is known for its diverse marine life, including abundant reef fish and healthy coral formations. Green Sea Turtles are commonly observed during dives, along with occasional sightings of stingrays, making it a favored location for underwater photography, particularly for wide-angle and macro shots.
13.4645, 144.6342
Blue Hole - Guam
Blue Hole is a distinctive dive site located on a natural limestone plateau. The dive begins at a depth of 18 meters (60 feet) and features a vertical shaft that opens up at 38 meters (125 feet). This site is suitable for experienced deep divers, particularly for those looking to navigate through the shaft. Visibility is generally excellent, and the plateau ranges from 9 to 18 meters (30 to 60 feet), making it accessible for divers of varying skill levels. Marine life commonly observed includes Green Sea Turtles, rays, and various pelagic species such as tuna, providing divers with opportunities for wildlife encounters.
13.4365, 144.6264
Boulder Alley
Boulder Alley is a shore dive site characterized by clear waters, making it suitable for night dives. Divers can drift along the cliff line that extends between the Navy sea wall and Shark’s Pit. At the western end of the dive, large schools of Pyramid Butterfly Fish are commonly observed, and divers may also encounter turtles during their exploration. The site offers a unique opportunity to observe pelagic species occasionally as well.
13.4257, 144.6395
Camel Rock
Camel Rock is located at a depth range of 30 to over 130 feet. This site is historically significant as it served as a dumping ground for numerous WWII ammunition and artifacts. Divers can observe coral encrusting the shells left from the war, alongside a steep drop-off that is home to various sea fans. Pelagic fish are frequently sighted along the slope, adding to the site's ecological diversity. The entry to the dive site is from the shore.
13.4803, 144.7057
Cocos East
Cocos East, also referred to as 'Yellow Wall', is a dive site characterized by its clear waters and impressive underwater walls. This site is suitable for advanced and expert divers, as it is typically accessed via boat and is best dived during calm sea conditions. Divers can expect to drift along the wall, which is adorned with numerous yellow sea fans. Common marine life includes Napoleon wrasse and bumphead parrotfish, along with frequent sightings of sharks and rays.
13.2372, 144.6583
Cocos West - Guam
Cocos West in Guam is a drift dive site characterized by a variety of corals, including mushroom corals and colorful whip corals found at depths starting around 26 meters (85 feet). Divers can expect to see reef sharks, stingrays, and turtles during their dives. The site is known for its strong currents, making morning dives preferable for better conditions.
13.2514, 144.6460
Coral Gardens - Guam
Coral Gardens is located in Agat Bay, with depths ranging from 5 to 45 feet. The site features diverse coral formations interspersed with sandy areas, making it suitable for beginner divers and photographers. The area is frequented by schools of butterflyfish and tangs, while anemone fish can be observed in large clusters of anemones. Due to the distance from shore, accessing this site is best done by kayak. Maintaining neutral buoyancy is recommended to enjoy the marine life without disturbing the environment.
13.3553, 144.6406
Crevice
Crevice is a dive site characterized by a large canyon that begins at a depth of 18 meters (60 feet) and features visibility exceeding 30 meters (100 feet). The walls of the canyon are adorned with sea fans, providing habitat for various marine life. Divers may encounter schools of barracuda and occasionally spot reef sharks. Turtles and pelagic species are commonly observed, with rare sightings of whale sharks. The site is accessible exclusively by boat and may experience currents, making it suitable for divers of all levels, while extended range divers will appreciate the deeper wall sections.
13.4336, 144.6297
Double Reef - Guam
Double Reef is located in the northern region of Guam, featuring a coral reef that ranges from 10 to 70 feet in depth. The site is characterized by clear waters and diverse coral formations, making it suitable for divers and snorkelers of all levels. Access is exclusively by boat, and the site is typically visited during the summer months when conditions are calm. Spinner dolphins are often spotted in the area during the mornings, along with a variety of reef fish and occasional pelagic species passing through.
13.5952, 144.8331
Fai Fai
Fai Fai is typically experienced as a drift dive from a boat, concluding at Gun Beach. The site is accessible for divers of all skill levels on most days. It is known for sightings of green and hawksbill turtles, along with various reef fish and some pelagic species. Anemone fish are frequently observed, as well as larger parrotfish and wrasse. During the spring and fall, manta rays may also be spotted in the area.
13.5315, 144.7995
Finger Reef
Finger Reef is situated within Apra Harbor, featuring depths ranging from 5 to 90 feet. The site consists of sloping coral formations adorned with numerous anemones and a diverse array of fish species. Divers can expect to encounter resident green sea turtles during most visits. Needle fish are often observed near the surface, following divers and snorkelers along the reef. It is important to refrain from chasing or touching the turtles to ensure their safety.
13.4446, 144.6364
Fish Bowl - Guam
Fish Bowl is located in Agat Bay, with depths ranging from 5 to 45 feet. The site features notable coral formations and sandy crevices, making it suitable for beginner divers. It is also an excellent location for photographers and snorkelers. Divers may encounter Spanish Dancers, whose eggs are visually striking and resemble red roses. Maintaining neutral buoyancy is recommended to observe marine life without disturbing the reef.
13.3592, 144.6415
Fouha Bay
Fouha Bay, located north of Umatac Bay, features a reef flat that descends from depths of 40 to 90 feet. At around 60 feet, divers can observe remnants of a World War II Japanese zero, including an engine block and propeller. This site is accessible from the shore, although a longer snorkel is necessary if not approached by boat. Divers can expect to see turtles frequently, along with a variety of small reef fish and the occasional pelagic species passing through.
13.3047, 144.6547
Gab Gab 1
Gab Gab 1 is a shore dive located off Gab Gab Beach, accessible exclusively through the Navy Base in Guam. This site is suitable for divers of all experience levels, featuring a diverse array of coral and a significant population of reef fish. Notable marine life includes large anemone beds, turtles, and the occasional octopus. For those without military access, the outer reef can be reached by boat.
13.4432, 144.6436
Gab Gab 2
Gab Gab 2 is located just north of Gab Gab 1 and features a floating buoy approximately 100 yards offshore. Divers begin their descent on the mooring line and should swim north at an angle of 30 degrees. The site is rich in marine life, including a variety of colorful corals, large jacks, nurse sharks, and numerous reef fish. The presence of feeder buckets contributes to a significant fish population, making it a good spot for observing butterflyfish, turtles, anemones, and octopus.
13.4456, 144.6438
Gun Beach
Gun Beach is located within the Tumon Marine Preserve, featuring a diverse array of marine life. The site is characterized by rich coral growth, including both hard and soft corals, as well as numerous sea anemones. Divers can expect to encounter various fish species, along with turtles and occasional manta rays. The depths at this site range from 3 to 10 meters, making it accessible for divers of varying experience levels. Entry is via the shore, providing easy access to the underwater environment.
13.5249, 144.8025
Hap’s Reef
Hap’s Reef is a shore entry dive site located at coordinates 13.394200, 144.653700. The dive ranges from depths of 25 to 65 feet, providing excellent visibility. The reef flat is populated with a diverse array of marine life, including the Banded Sole, which moves along the bottom in a manner similar to a large Nudibranch. Divers are encouraged to maintain neutral buoyancy to observe these unique fish and the surrounding ecosystem.
13.3942, 144.6537
Harley Reef
Harley Reef is a dive site located in Apra Harbor, featuring a depth that begins at approximately 15 feet and gradually slopes down to 110 feet. This site is accessible from the shore and is suitable for divers of all experience levels. Notable nearby attractions include the Val Bomber and Barge Reef. Divers may encounter Green and Hawksbill Sea Turtles; it is advisable to move slowly to observe these creatures without disturbing them. Maintaining neutral buoyancy and refraining from touching or chasing the turtles is essential for their protection.
13.4636, 144.6410
Hilton Wall
Hilton Wall is a dive site characterized by an abundance of sea fans and schools of barracuda, offering excellent visibility. The shallow reef flats are rich in colorful hard corals and host a variety of reef fish. This site is exclusively accessible by boat and is known for drift diving opportunities. Divers may encounter crinoids on whip corals and sea fans, which are ideal for wide-angle photography. Additionally, there is a possibility of spotting turtles or sharks during dives.
13.5070, 144.7752
Japanese Salvage Tug (Wreck)
The Japanese Salvage Tug is a World War II wreck located at a depth of 130 feet, with its deck situated at 115 feet. This site is suitable for deep divers, particularly those using nitrox. Due to the condition of the vessel, penetration is not advisable. Access to the site is exclusively by boat. Marine life commonly observed includes small fish, rays, turtles, octopus, and eels, with occasional sightings of rays.
13.4584, 144.6543
Keyhole
Keyhole offers a drift dive experience suitable for beginners along the upper shelf, while also serving as a drop-off point for technical divers heading to the deeper wall. Divers can expect to encounter a variety of marine life, including hawksbill and green turtles, blacktip and whitetip reef sharks, as well as marble rays. Pelagic species and typical reef fish are also commonly observed during dives. The site is accessible from the shore.
13.4404, 144.6205
Kitsugawa Maru (Wreck)
The Kitsugawa Maru is a Japanese freighter that sank in July 1944 and now rests upright at a depth of 140 feet in Apra Harbor. The vessel's deck is located at 115 feet, while its masts extend approximately 50 feet above the surface. Divers can observe a large intact bow gun and explore the H-mast, which is home to jacks and snapper, as well as being encrusted with hard corals and shellfish. Additionally, whip blennies can be spotted in the area, along with occasional sightings of turtles and eagle rays.
13.4583, 144.6503
Luminao Reef
Luminao Reef is accessible from the shore and is known for its diverse marine life. Divers can observe a variety of reef fish, along with pelagic species such as tuna and barracuda. The site also features schooling wrasses and butterfly fish, as well as occasional sightings of turtles and stingrays. Visibility at Luminao Reef is typically clear, making it a suitable location for divers of varying experience levels.
13.4691, 144.6537
Lunar Scape
Lunar Scape is located at the northern end of Luminao Reef and is accessible only by boat. This dive site is characterized by its drift diving conditions, where divers can experience the currents while remaining neutrally buoyant. It is common to encounter large pelagic fish, as well as occasional sightings of sharks, rays, and turtles. The diverse marine life includes numerous reef fish, making it an engaging site for divers. The site is best suited for those with drift diving experience due to the currents present.
13.4676, 144.6561
Napoleon Cut - Guam
Napoleon Cut is a dive site characterized by a sloping wall that ranges from 10 to 130 feet in depth. The area features sand channels, overhangs, and unique rock formations. Divers may encounter small sharks, barracudas, and the occasional Napoleon Wrasse, which the site is named after. The clear waters are accessible only by boat, and dives are typically conducted as drift dives. The reef supports a diverse marine ecosystem, including various reef fish, turtles, and octopus, particularly at deeper depths where whip corals can also be found.
13.6431, 144.8471
Nathan’s Dent
Nathan's Dent is located just south of Facpi and features sand flats ranging from 30 to 80 feet in depth. The site includes small caves and coral islands, making it an accessible dive for all skill levels. Divers can expect to see scorpion fish and lionfish, which often inhabit the overhanging coral. Additionally, stingrays are frequently spotted on the sand flats, and turtles are commonly seen during dives. Access to this site is by boat.
13.3361, 144.6405
Northern Caves
Northern Caves is located south of Haputo Beach, featuring an entrance at a depth of 15 meters that leads into a spacious opening within the cliff structure. Divers can find multiple exit points at the surface, allowing for easy navigation without the need for artificial light. This site is accessible exclusively by boat and is suitable for divers of all experience levels. Inside the caverns, divers may encounter Squirrel and Soldier Fish, while the hard coral reef surrounding the caves supports a diverse array of reef fish.
13.5730, 144.8241
Octopus Reef
Octopus Reef is located near Uruno Point and features depths ranging from 15 to 110 feet. The site is characterized by surge channels, vertical walls, and a steep amphitheater-shaped slope. Divers can observe a variety of marine life, including numerous octopuses, large wrasses, and parrotfish. The water clarity is typically excellent. Access to this site is exclusively by boat during the summer months, and it is often explored as a drift dive. Additionally, eels and various schooling fish inhabit the area, with occasional pelagic species passing through.
13.6209, 144.8343
Outhouse Beach
Outhouse Beach, also known as Apra Beach, serves as a training site for novice divers. The area is home to a diverse range of fish species, making it an engaging spot for underwater exploration. Common marine life includes Green Sea Turtles, Stingrays, and Eagle Rays. For those interested in night diving, the site offers opportunities to observe eels, octopus, and nudibranchs, enhancing the experience for divers of all skill levels.
13.4642, 144.6555
Palace Wall
Palace Wall is located near the former Palace Hotel, now known as the Sheridan Hotel. This dive site features a vertical wall that attracts deep and extended range technical divers, while the shallow reef flats are accessible for divers of all levels. The area is known for sightings of turtles on most dives, and the wall is home to a variety of hard and soft corals that support numerous reef fish. Pelagic species, including mantas, can occasionally be observed in the deeper sections. Access to the site is via shore, requiring a lengthy walk and snorkel. The best diving conditions are typically found during the summer months when the seas are calmer.
13.4987, 144.7676
Pati Point
Pati Point is a drift dive site characterized by the potential for strong currents and moderate to rough sea conditions. The dive reaches a depth of 115 feet, where divers can explore a large cavern. This site is known for sightings of barracuda, sharks, and large pelagic fish, as well as very large groupers and nurse sharks near the deep caves. It is recommended for highly experienced divers due to the challenging conditions.
13.6018, 144.9535
Pete’s Reef
Pete's Reef is located on the northern side of Facpi Point, featuring a prominent sand channel at a depth of approximately 14 meters, where a large Magnificent Anemone can be found. The site offers a drift dive along a sloping coral wall, showcasing a diverse array of coral species and marine life. Divers can frequently observe large snapper in the area, while pipefish are often spotted in the shallower sections of the reef, typically near Farmer Fish. The coral formations along the reef slope are notable for their variety and structure.
13.3441, 144.6377
Pete’s West
Pete's West is located at the western end of Facpi Point and is characterized by healthy coral growth and a diverse population of reef fish. This site is typically accessed by boat and is often experienced as a drift dive, beginning at Pete's Reef. Morning dives are recommended due to the potential for stronger currents in the afternoon, influenced by wind conditions. Divers may also encounter dolphins and numerous turtles that inhabit the area.
13.3428, 144.6340
Piti Bomb Holes
Piti Bomb Holes is a shore entry dive site located at coordinates 13.472000, 144.696300. The area is characterized by a rich diversity of marine life, including numerous juvenile reef fish, various anemone beds, and a mix of hard and soft corals. Divers and snorkelers can expect to encounter a wide range of species, including turtles and barracuda, making it a vibrant spot for underwater exploration. The site is suitable for divers of all experience levels and offers a unique opportunity to observe the abundant marine ecosystem.
13.4720, 144.6963
Piti Channel
Piti Channel is a natural channel that can be accessed from the shore near the Cabras Power Plant. The outflow from the power plant contributes to warmer water temperatures, which are conducive to the presence of crustaceans. Divers should be aware that currents in this area can exceed two knots, necessitating caution and experience for those attempting this dive.
13.4651, 144.6875
Ritidian Point
Ritidian Point is located on the northwest corner of Guam, featuring a sloping reef that ranges from 10 to 130 feet in depth. This site is characterized by drift diving conditions, which can include strong currents, making it more suitable for advanced to expert divers, particularly when conditions are calm. Divers can expect to see a variety of marine life, including barracuda, reef sharks, rays, and turtles. At greater depths, bright red whip corals are prevalent. The water clarity at this site is typically excellent, enhancing the overall diving experience.
13.6497, 144.8503
RMS Scotia (Wreck)
The RMS Scotia is a historic wreck site, originally a British passenger liner operated by the Cunard Line. This vessel, known for its speed as a transatlantic voyager, was converted into a twin-screw cable layer in 1879. Divers can explore the remains of the ship, which is situated at a shore entry point. The site is home to a diverse array of marine life, including various species of reef fish, as well as frequent sightings of White-tip and Black-tip sharks. Green Sea Turtles are also commonly observed in the area, adding to the site's ecological significance.
13.4547, 144.6241
Ron’s Reef
Ron's Reef is typically explored as a drift dive, beginning at The Scotia or First Beach and heading westward from the harbor. This site is accessible exclusively by boat, and divers should remain vigilant for boats passing overhead. The water is generally clear, providing excellent visibility. At a depth of approximately 35 feet, divers can find a notable stand of blue coral, which attracts macro photographers. Additionally, pelagic species are frequently observed as they transit through this area, adding to the site's diverse marine life.
13.4542, 144.6230
Scuba Beach
Scuba Beach offers a diverse underwater environment characterized by various coral formations and expansive sand flats, making it suitable for diver training. The site features a sloping reef that provides a sheltered habitat for marine life. Commonly observed species include damselfish, angelfish, butterflyfish, parrotfish, and wrasse. Turtles are frequently sighted during dives. The depth ranges from standing depth to over 30 meters, allowing for a range of diving experiences. Entry is via the shore.
13.4631, 144.6491
Scuba Cut
Scuba Cut is a drift dive site characterized by the potential for strong currents and surge. It is located in the Ritidian Preserve, known for its diverse and well-preserved coral formations. Divers can expect to encounter large schools of parrot fish, various reef fish, and pelagic species, including sharks. Access to this site requires a lengthy boat ride, and it is best visited during calm sea conditions.
13.6087, 144.9080
Seabee Junkyard
Seabee Junkyard is located in Apra Harbor, with depths ranging from 35 to 140 feet. The site features a plateau along the breakwater, where various construction equipment, including bulldozers and a small harbor transfer ship, are found. These remnants were left by the Seabees after the completion of the breakwater. Divers can also observe a variety of coral and reef fish in the area. Additionally, shells, such as the cone snail, can be spotted, but caution is advised not to collect any shells that are not identifiable as safe.
13.4571, 144.6280
Sharks Pit
Sharks Pit is a unique dive site situated along the Orote Peninsula, featuring various WWII artifacts. The dive begins at a depth of 30 feet, where divers can observe sea fans, and a pinnacle rises from 100 feet to 12 feet, providing excellent opportunities for macro photography. Notable marine life includes schools of pyramid butterflyfish, as well as arc-eyed and velvet hawkfish, which are often found posing for photographers.
13.4214, 144.6394
SMS Cormoran (Wreck)
The SMS Cormoran wreck, a World War I site, rests on her starboard side at a depth of 130 feet. It is located near the Tokai Maru, which sank in 1943, making it a unique location where divers can explore wrecks from both World Wars in one dive. The site is known for its macro life, featuring various tunicates and colonies of whip, hard, and soft corals. Common marine life includes moray eels, octopuses, and rays, enhancing the diving experience.
13.4594, 144.6568
Spanish Steps
Spanish Steps is primarily accessed from the shore near Navy Base Guam. This site is often explored as a drift dive, typically starting within the cove and following the currents either to the north or south. The water is usually very clear, providing excellent visibility for observing marine life. Divers can expect to see schooling bait fish and small squid, particularly if they remain still and neutral in the water. Notable features include a carpet anemone located at a depth of approximately 18 meters (60 feet).
13.4467, 144.6183
Surprise Reef
Surprise Reef is a sea mount located due west of San Luis beach, featuring pristine coral formations. This site is notable for its large anemone beds, which host numerous dusky anemone fish. Divers may also encounter juvenile Napoleon Wrasses in this area. The reef remains largely untouched due to its protection from dredging activities in the 1960s. Access to this dive site is exclusively by boat.
13.4471, 144.6516
Tarzan Cave
Tarzan Cave is a shore-accessible dive site located at coordinates 13.417600, 144.643800, with entry available via Navy Base Guam. The site features remnants of an old crane, pipes, and various wreckage, providing a unique underwater landscape. Divers can expect to encounter Hawksbill and Green Sea Turtles during their dives, as these species are commonly observed here. Additionally, crinoids are prevalent, making them excellent subjects for underwater photography.
13.4176, 144.6438
The Pinnacle - Guam
The Pinnacle in Guam is a deep water reef with a top depth of 120 feet. This site is known for its large pelagic species, including schools of barracuda and tuna, as well as occasional sightings of reef sharks and rays. Sea fans can be found at both ends of the site. Due to the presence of currents, this dive is classified as advanced and is suitable only for divers with deep or technical diving certifications. Access to The Pinnacle is exclusively by boat, and it is best visited when sea conditions are calm.
13.5865, 144.8258
The Tunnel - Guam
The Tunnel in Guam features a northern coral reef that extends from the cliff line. Divers can explore a natural opening in the reef that begins at a depth of 35 feet and exits at 45 feet. The area is characterized by caverns and sand channels, providing diverse underwater terrain. Common marine life includes lionfish, which are often found within the cavern, and octopus, which inhabit the reef. Divers should maintain neutral buoyancy while navigating this site.
13.6040, 144.8351
The Wall - Guam
The Wall in Guam features a steep, knife-edge drop-off that ranges from 40 to 130 feet. This site is typically experienced as a drift dive, with moderate depths between 35 and 65 feet, making it accessible to divers of varying skill levels. The wall is adorned with fans and small soft corals. Marine life commonly observed includes stingrays, Black-Tip and White-Tip Reef Sharks, as well as Green and Sea Turtles, with occasional sightings of Hawksbill Turtles. Access to this dive site is exclusively by boat.
13.4431, 144.6196
Toguan Bay
Toguan Bay features a series of small caves within a shallow coral reef, with depths ranging from just below the surface to a maximum of 60 feet. Access is convenient from the shore, located near the 'Welcome to Merizo' sign. Divers can follow the river channel and proceed south along the edge of the reef. The area is populated with schools of small to medium-sized parrotfish, while large lionfish can often be found hiding in the caves. Additionally, damsel fish are abundant, and this site is also a good location for observing pipefish.
13.2846, 144.6615
Tokai Maru (Wreck)
The Tokai Maru wreck lies at a depth of 130 feet in Apra Harbor, having been sunk by the U.S. submarine Snapper on August 27, 1943. This site is located next to the Coromoran, which was scuttled during World War I, creating a notable wreck area. Divers can observe various whip corals on the wreck, which provide habitat for whip blennies. Common marine life in the vicinity includes eels, turtles, and large map pufferfish, as well as colorful nudibranchs.
13.4591, 144.6560
Turtle Rock - Guam
Turtle Rock is best accessed by boat, featuring a steep drop-off that reaches depths of 85 feet. The site is named for its distinctive turtle-like shape and is known for the presence of various sea turtles, including Hawksbill and Green Sea Turtles, which are commonly observed during dives. Additionally, divers may encounter Lionfish in the area. The clear waters provide excellent conditions for wide-angle photography.
13.4139, 144.6459
Umatac Zero (Wreck)
Umatac Zero is the site of a Japanese Zero plane wreck that disintegrated during a typhoon in 1997. The wreckage, including parts of the fuselage, engine block, and propeller, is located in a small ravine at a depth of approximately 15 meters (50 feet). Divers can access this site from the beach, but it is advisable to seek permission from landowners and to avoid walking on the coral. Marine life commonly observed here includes schools of small Parrotfish and wrasses, as well as turtles, rays, and occasional reef sharks.
13.2997, 144.6571
Val Bomber (Wreck)
The Val Bomber wreck is located in Apra Harbor at a depth of approximately 85 feet, resting against the sloping reef. This site, which was sunk during the liberation of Guam in July 1944, offers divers the opportunity to explore not only the wreck but also several barges situated in shallower waters. The area is home to a diverse range of reef fish, and the surrounding reef is adorned with Elephant Ear Sponges as well as various hard and soft corals.
13.4629, 144.6368
Vecki Reef
Vecki Reef is located near the harbor entrance and features a gentle slope from a shallow reef flat down to depths exceeding 40 meters. Access to this dive site is exclusively by boat. Divers can expect excellent visibility and a diverse array of reef fish, along with the presence of several anemones. Turtles are commonly observed during dives at this site.
13.4497, 144.6247
Western Shoals
Western Shoals is located in Apra Harbor and is accessible only by boat. The dive site features a sloping reef that ranges in depth from 10 to 90 feet. Divers can expect to see a diverse array of corals and a large population of fish, making it suitable for divers of all experience levels. The area is home to Green Sea Turtles and includes several large anemone beds in the shallower regions. Additionally, it serves as a nursery for various fish species, including larger wrasse.
13.4518, 144.6547