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Bajo Alcyone - Costa Rica

Bajo Alcyone is a boat accessible salt water dive site, located in Cocos Island, Costa Rica. This dive site has an average rating of 3.33 out of 5 from 6 scuba divers. The maximum depth is 111-120ft/34-37m. The average visibility is 31-35ft/9-11m.

Submerged rock pinnacle east of Cocos Island. This is the place to see HUNDREDS of Hammerhead sharks and THOUSANDS of Big Eye Jacks in giant schools. Also, there is a good likelyhood of swimming with one or more whale sharks! Advanced dive due to rough surface conditions, current, surge, and at times limited visibility. Water temps. between 73 and 75 F.

From SportDiver Planet’s 50 Greatest Dives, #14, In 1987, the Cousteau Society’s expedition ship Alcyone first visited Cocos, discovering a seamount that would eventually become the legendary site. Because it’s so far offshore, Alcyone offers incredible pelagic action. A quick descent to the top, which lies at 85 feet, is an unforgettable experience, with scalloped hammerhead sharks schooling above. Whale sharks, dolphins, tuna, giant mantas, mobula rays, eagle rays and marble rays swim by. The reef also provides plenty of action courtesy of critters like octopuses, eels and the endemic Cocos blenny. — Edwar Herreño

This legendary seamount is probably one of the most incredible dive sites in the world. No words can describe what you will see at Alcyone. Just come and witness it for yourself.

Marine life:

Hammerheads, white tips, black tips, whale sharks, marble rays, eagle rays, mobula rays, manta rays, turtles, yellow fin tuna, silkies, sailfish, wahoos, dolphins

Dive Site Map

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TelaDiver - 5/19/2013 5:53 AM
Rating Added: 5
Saw Galapagos sharks, blacktip sharks, dolphins, marble rays and hundreds of hammerhead sharks. Dove here twicw in 2010. A little rough on the surface. I recommend that any body having the chance to get on a liveaboard and dive here.