Bajo Alcyone
Also known as: Alcyone Seamount
Best time to dive
June to December; December to May
What you might see
- Eagle rayLikely
- Grey reef sharkPossible
- Hammerhead sharkLikely
- Manta rayLikely
- Whale sharkPossible
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Advanced Open Water - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - Not offered - deep offshore seamount, scuba only
Safety notes
Strong offshore currents, deep profile (approaching recreational limits), remote location (~36hr from mainland, no fast medical evacuation), thermoclines, boat traffic/DCS risk given repetitive deep diving
Permits & fees
Cocos Island National Park entrance fee (~$50 reported, collected by liveaboard operator as part of package); access is liveaboard-only, no day-trip or land-based diving permitted; SINAC/MINAE park regulations apply
Permits and operators change - confirm before booking.
Location
Nearest hub: Chatham Bay
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.

