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
Ukon Danchi lies off Japan's southern Yaeyama Islands, in the waters near Yonaguni or the surrounding Okinawa reef systems at these coordinates. It reaches a maximum depth of around 8 metres and is considered a beginner-friendly dive.
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.
Brown Staghorn CoralAcropora muricataReported here · unconfirmed
Acropora gemmiferaReported here · unconfirmed
Acropora digitiferaReported here · unconfirmed
Finger CoralAcropora humilisReported here · unconfirmed
Acropora tenuisReported 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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