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
Boulder City lies in the waters off Phangnga, Thailand, part of the Andaman Sea dive circuit reached by boat from the mainland coast. The site reaches a maximum depth of around 40 metres and is rated an intermediate dive. Its name points to a seascape built from large granite boulders, a topography typical of this stretch of the Andaman Sea.
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.
Breviturma dentataReported here · unconfirmed
Greenfish Sea CucumberStichopus chloronotusReported here · unconfirmed
Ophiocoma erinaceusReported here · unconfirmed
Neon FusilierPterocaesio tileReported here · unconfirmed
Bluefin TrevallyCaranx melampygusReported here · unconfirmed
Black-finned TriggerfishMelichthys indicusReported here · unconfirmed
Spotted BoxfishOstracion meleagrisReported here · unconfirmed
Moorish IdolZanclus cornutusReported 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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