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.
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About this site
Koh Ha is a small group of limestone islands in the Andaman Sea, part of Krabi province in southern Thailand and often visited on trips out of Koh Lanta or Phi Phi. The islands sit within reach of the Mu Ko Lanta area and are known locally for a submerged cavern connecting several of the islets, with the limestone formations rising steeply from the sea, typical of the karst topography scattered through this part of the Andaman coast. Diving here reaches a maximum depth of around 30 metres over a reef bottom and is rated advanced. Divers have reported angelfish, bannerfish, fusiliers, leopard sharks, nudibranchs, pufferfish, and even whale sharks around the site, along with occasional jellyfish.
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.
AngelfishAngelfishReported here · unconfirmed
Tawny Hermit CrabCoenobita rugosusReported here · unconfirmed
BannerfishBannerfishReported here · unconfirmed
PufferfishPufferfishReported here · unconfirmed
NudibranchNudibranchReported here · unconfirmed
FusilierFusilierReported here · unconfirmed
Leopard / zebra sharkLeopard / zebra sharkReported here · unconfirmed
Whale SharkRhincodon typusReported 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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