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
Kumejima is an island in the Ryukyu chain west of Okinawa, part of Japan's southernmost prefecture in the East China Sea. Tonbara refers to a dive area off this island, reached by boat from the local harbors that serve Kumejima's diving operations.
AI overviewMarine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Black Sea CucumberHolothuria leucospilotaReported here · unconfirmed
Black-and-white Cone SnailConus ebraeusReported here · unconfirmed
Omaria ConeConus omariaReported here · unconfirmed
Gold Ring CowryMonetaria annulusReported here · unconfirmed
Conus fulgetrumReported here · unconfirmed
Arabian CowrieMauritia arabicaReported here · unconfirmed
Fire DartfishNemateleotris magnificaReported here · unconfirmed
Coconut CrabBirgus latroObserved near here · iNaturalist
Green Sea TurtleChelonia mydasObserved near here · iNaturalist
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
No notes yet. Dived here? Be the first to leave a tip.
Share a write-up or a photo. Submissions are reviewed before they appear on the page.
Nearby dive sites
Shops that dive here
No shops have listed this site yet.