Caño Island Biological Marine Reserve
Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
Caño Island Biological Marine Reserve sits off the Osa Peninsula on Costa Rica's southern Pacific coast, reached by boat from Drake Bay or Sierpe. The island and its surrounding waters are protected as a marine reserve, part of the broader Osa conservation area known for its biodiversity. Diving here reaches a maximum depth of around 30 metres and is generally rated suitable for beginners. Divers have also reported barracuda, parrotfish, snapper, and surgeonfish around the reef, along with sightings of bull sharks, eagle rays, hammerhead sharks, manta rays, and even a whale and a dugong passing through these waters.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Eagle rayEagle rayReported here · unconfirmed
DugongDugongReported here · unconfirmed
Bull SharkCarcharhinus leucasReported here · unconfirmed
Hammerhead sharkHammerhead sharkReported here · unconfirmed
Manta rayManta rayReported here · unconfirmed
ParrotfishParrotfishReported here · unconfirmed
SnapperSnapperReported here · unconfirmed
BarracudaBarracudaReported here · unconfirmed
SurgeonfishSurgeonfishReported here · unconfirmed
WhaleWhaleReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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