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
Ko Man Nai is a small island off the coast of Rayong Province in the Gulf of Thailand, near the town of Ban Phe. The jetty on the island serves as a boat access point for the waters surrounding this stretch of the Rayong coastline.
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.
Bengal SergeantAbudefduf bengalensisReported here · unconfirmed
Ashy Pink Sea CucumberHolothuria (Stauropora) fuscocinereaReported here · unconfirmed
Spanish Flag SnapperLutjanus carponotatusReported here · unconfirmed
Mottled Lightfoot CrabGrapsus albolineatusReported here · unconfirmed
Eightband ButterflyfishChaetodon octofasciatusReported here · unconfirmed
Blackblotched PorcupinefishDiodon liturosusReported here · unconfirmed
Black Sea CucumberHolothuria leucospilotaReported here · unconfirmed
Boring Giant ClamTridacna croceaObserved near here · iNaturalist
Fluted Giant ClamTridacna squamosaObserved 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.
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