Alcyone, Cocos Island

Type:

Scuba Diving

Entry:⚓Boat Entry

Difficulty:Expert

Tags:

PinnacleWall

About This Dive Spot

Alcyone is an underwater mountain off Cocos Island, known for challenging conditions and big-animal encounters. Strong to very strong currents can occur, and divers descend using a rope. The site has a stated maximum depth of 30 m and is recommended only for very experienced divers. Large schools of hammerhead sharks are frequently seen, along with dolphins, Galapagos sharks, and large marble rays.

Planning details

Reported depth and seasonality.

Reported depth

Up to 30m

Depth note

Maximum depth stated as 30 m.

Typical conditions

Strong to very strong current is always possible.

Safety & access

Hazards, restrictions, and required precautions.

Hazards

Strong currentDangerous wildlife

Safety notes

Very strong currents are possible; descent is done on a rope. Suitable only for highly experienced divers.

Local intel

Community notes to help plan your visit.

Tailored notes for different activities.

Scuba

Maximum depth is 30 m and the dive is intended for very experienced divers.

Dive Spot Log Averages

Average conditions based on logged dives & visits

No community dive data has been logged here yet. Be the first to record a dive and seed the averages.

Dive Conditions Planner

Current snapshot, today hourly conditions, and seven-day planning data.

Current snapshot

Right now

--🌥️Variable

Weekly trends

Marine rhythm

Surface outlook

Unlock the full potential of DiveJourney.

Recent Logged Visits

No Dive Logs Yet

Be the first to log a dive at this spot and share your experience!

Spots Near Alcyone, Cocos Island

📍 5.9 km

Manuelita Coral Garden

⚓

Manuelita Coral Garden is a hard-coral reef system off Chatham Bay, reaching a maximum depth of about 21 m. It’s described as being sheltered from strong currents, which can make the dive more approachable across experience levels. Divers can encounter a mix of reef and pelagic life here, including eels, lobsters, rays, and several shark species such as blacktips, whitetips, and hammerheads. The high season is noted as December through April.

📍 7.4 km

Dirty Rock

⚓

Dirty Rock, located off Costa Rica's Cocos Island, is an advanced dive site with depths ranging from 10 to 35 meters and visibility exceeding 30 meters. Divers can encounter schools of hammerhead sharks, horse-eyed jacks, turtles, eagle rays, and reef sharks. Due to strong currents, this site is recommended for experienced divers only.

Loading nearby spots...

Frequently Asked Questions

What's the best entry point at Alcyone, Cocos Island?

Entry at Alcyone, Cocos Island is detailed in the spot description above. Look for specific landmarks, access paths, and any tide or condition requirements. Local divers often share updated entry tips in their dive logs.

What conditions are best for diving Alcyone, Cocos Island?

Optimal conditions at Alcyone, Cocos Island depend on several factors including tide, wind, and season. Check recent dive logs for current condition reports and patterns. Generally, calmer seas and high tide provide better visibility and easier entry.

What is the maximum depth and typical visibility at Alcyone, Cocos Island?

Depth and visibility information for Alcyone, Cocos Island can be found in the spot details and recent dive logs. Conditions can vary significantly based on weather, tide, and season. Always plan your dive according to current conditions and your certification level.

Are there any safety considerations or local etiquette at Alcyone, Cocos Island?

When diving Alcyone, Cocos Island, respect local regulations, marine life, and other water users. Be aware of any specific hazards like currents or boat traffic mentioned in the spot description. Follow Leave No Trace principles and local diving etiquette.