Hin Wong Pinnacle
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
Hin Wong Pinnacle is a large rock pinnacle dive site located on the east side of Koh Tao, descending from 10 m to 30 m. The terrain is dramatic and varied, with bold topography that sets it apart from other sites around the island. The structure is draped in lacy sea fans and curly whip corals, with notable bright blue soft corals at 26 m.
The site holds an impressive range of marine life across its depth range. Resident species include filefish, shrimpfish, coral grouper, fusiliers, barracuda, trevally, colourful reef fish, and a green turtle that stays relaxed as long as divers keep their distance. Macro photographers will find nudibranchs and other brightly coloured invertebrates throughout the site, and turtles are also regularly reported among the boulders alongside snappers and groupers.
Hin Wong Pinnacle carries strong currents and is rated intermediate to advanced, with a maximum depth of 30 m. On good days the site is known for excellent visibility. Water temperature ranges from 27–30°C, and the best seasons to dive are March to May and September to October.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Hong Kong ButterflyfishChaetodon wiebeliReported here · unconfirmed
Redbreast Maori WrasseCheilinus fasciatusReported here · unconfirmed
Slingjaw WrasseEpibulus insidiatorReported here · unconfirmed
Scissortail SergeantAbudefduf sexfasciatusReported here · unconfirmed
Titan TriggerfishBalistoides viridescensReported here · unconfirmed
NudibranchNudibranchConfirmed present · 2 independent sources
FusilierFusilierReported here · unconfirmed
BarracudaBarracudaConfirmed present · 3 independent sources
PipefishPipefishConfirmed present · 2 independent sources
SeahorseSeahorseReported here · unconfirmed
SnapperSnapperConfirmed present · 2 independent sources
GrouperGrouperConfirmed present · 3 independent sources
Whale SharkRhincodon typusReported here · unconfirmed
Blue-barred ParrotfishScarus ghobbanReported here · unconfirmed
Doublebar RabbitfishSiganus virgatusReported here · unconfirmed
Blackeye ThicklipHemigymnus melapterusReported here · unconfirmed
Pink Skunk AnemonefishAmphiprion perideraionReported here · unconfirmed
Longfin BannerfishHeniochus acuminatusReported here · unconfirmed
TrevallyTrevallyConfirmed present · 2 independent sources
SweetlipsSweetlipsReported here · unconfirmed
Mourning DoridJorunna funebrisObserved near here · iNaturalist
Surf ParrotfishScarus rivulatusObserved 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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