25-40m
    Cocos Island, Costa Rica
    Parc national de l'île Cocos

    Alcyone

    Protected Area

    Parc national de l'île Cocos

    Why dive here

    With 288+ marine species recorded in the area - including blacktip reef sharks, blue sharks, dolphins, eagle rays and giant moray eels - Alcyone offers some of Cocos Island's richest cave diving.

    Marine lifeBlacktip Reef Sharks, Blue Sharks, Dolphins, Eagle Rays and Giant Moray Eels · 288+ species recorded
    CharacterCave dive · max 25-40m
    StandoutExceptional marine biodiversity

    The Bat Cave at Apo Reef offers a unique twist for divers looking beyond open reef dives. It's a shallow cavern, easily accessible, where you surface inside to a dome-like chamber filled with hanging bats. Below the surface, the cave itself is fairly bare, but the draw is definitely the air pocket and its residents. We'd suggest it for divers who enjoy novelty and are comfortable with overhead environments, though it's not a deep penetration dive.

    Typical Alcyone Dive Profile

    10m20mSafety Stop0m25m max~30 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Depth of 25m - Advanced Open Water certification recommended.

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today05:4417:5912h 16m daylightGolden hour 17:31

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