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
Oyama Reef lies off Okinawa in the East China Sea, offering vibrant coral gardens and steep drop-offs. Expect strong currents that attract pelagics like tuna and reef sharks. The site features swim-throughs and overhangs teeming with tropical fish. Visibility often exceeds 30 meters, with water temperatures ranging 22-28°C. Best suited for experienced divers due to challenging conditions.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
common hairy crabPilumnus vespertilioReported here · unconfirmed
Gold Ring CowryMonetaria annulusReported here · unconfirmed
Boring Giant ClamTridacna croceaReported here · unconfirmed
Blue DemoiselleChrysiptera cyaneaReported here · unconfirmed
Left-handed Hermit CrabCalcinus laevimanusReported here · unconfirmed
Indo-Pacific Rock-boring UrchinEchinometra mathaeiReported here · unconfirmed
Mottled Lightfoot CrabGrapsus albolineatusReported here · unconfirmed
Black-and-white Cone SnailConus ebraeusReported here · unconfirmed
Thin-shelled Rock CrabGrapsus tenuicrustatusReported 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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