Chumphon Pinnacle
Conditions & tides
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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
Chumphon Pinnacle is a granite pinnacle dive site in the Gulf of Thailand, a short boat ride from Koh Tao. The pinnacle rises from depth, with the shallowest point at 14 metres and the bottom reaching 35–36 metres. The structure is blanketed in pink anemones and colourful anemones, making it a magnet for both reef fish and large pelagic species.
The site is rated for advanced divers, with depth and the potential for strong current being the primary hazards; nitrogen narcosis is also a consideration at the deeper end of the dive. Visibility is generally great, and water temperature sits between 27–30°C. For the best visibility, March to September is the recommended window.
Marine life at Chumphon Pinnacle centres on large animals: giant groupers and schooling barracuda are regular sights, along with bigeye trevally, batfish, fusiliers, and tuna. Pink anemonefish inhabit the anemones covering the rock. Whale sharks appear seasonally, with the green season — particularly later in the year — offering the best chances, and March to May and September to October cited as prime periods for pelagic encounters.
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The site is reached by boat and suits experienced divers, with an Advanced Open Water certification or equivalent recommended. It is well regarded among underwater photographers and divers specifically seeking large fish action.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
FusilierFusilierConfirmed present · 3 independent sources
Hong Kong ButterflyfishChaetodon wiebeliReported here · unconfirmed
Titan TriggerfishBalistoides viridescensReported here · unconfirmed
Mourning DoridJorunna funebrisReported here · unconfirmed
Scissortail SergeantAbudefduf sexfasciatusReported here · unconfirmed
Redbreast Maori WrasseCheilinus fasciatusReported here · unconfirmed
Pink Skunk AnemonefishAmphiprion perideraionReported here · unconfirmed
Longfin BannerfishHeniochus acuminatusReported here · unconfirmed
Doublebar RabbitfishSiganus virgatusReported here · unconfirmed
OctopusOctopusReported here · unconfirmed
MackerelMackerelConfirmed present · 2 independent sources
SnapperSnapperConfirmed present · 2 independent sources
GrouperGrouperConfirmed present · 13 independent sources
TrevallyTrevallyConfirmed present · 9 independent sources
AngelfishAngelfishReported here · unconfirmed
Manta rayManta rayReported here · unconfirmed
TunaTunaReported here · unconfirmed
BarracudaBarracudaConfirmed present · 16 independent sources
BatfishBatfishConfirmed present · 8 independent sources
LionfishLionfishConfirmed present · 2 independent sources
PipefishPipefishReported here · unconfirmed
DamselfishDamselfishReported here · unconfirmed
ClownfishClownfishConfirmed present · 7 independent sources
Whale SharkRhincodon typusConfirmed present · 16 independent sources
Bull SharkCarcharhinus leucasReported 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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