www.khaolakexplorer.com · Tourism Operator
Day-trip operator describing the granite plateau, soft coral, sea fans, anemones, and strong current.
Dive Spot Guide•
Koh Tachai Pinnacle
Koh Tachai Pinnacle is an open-ocean granite pinnacle in the Similan Islands.
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Koh Tachai Pinnacle is a Similan National Park liveaboard site with twin granite pinnacles, mooring-line descents, and current-led planning.
About Koh Tachai Pinnacle
Koh Tachai Pinnacle is an open-ocean granite pinnacle in the Similan National Park that rewards boat logistics, mooring-line descents, and a plan built around current. The site mixes a shallow top, sandy saddles, boulders, coral plateaus, and blue-water edges, so the dive can move from shelter to exposure quickly. It is best for divers who are comfortable with liveaboard-style planning, strong-water judgment, and the possibility of big-pelagic encounters when the season and sea state line up.
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Where Is Koh Tachai Pinnacle?
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Community sourced coordinates.
Koh Tachai Pinnacle Planning Details
Depth range, seasonality, and planning context.
Reported Depth
14m - 30m
Depth Note
The larger pinnacle starts at around 14 m and descends to about 30 m.
Best Season
November to April, with February to April usually the sweet spot.
Typical Conditions
Open-ocean pinnacle with strong current, a mooring-line descent, and granite boulders covered in soft coral, sea fans, and anemones.
Safety & Access At Koh Tachai Pinnacle
Hazards, restrictions, and access requirements.
Key Hazards
Overhead environment
Safety Notes
Swim-throughs are present; use appropriate buoyancy control and awareness when passing through overhead areas. Maximum depth reaches about 30 m.
Access Restrictions
Liveaboard or licensed boat access only, with park-season closures during the monsoon period.
Legal Notes
Koh Tachai is inside Mu Ko Similan National Park and closes during the monsoon closure.
Local Intel For Koh Tachai Pinnacle
Community notes to help plan your visit.
Scuba Diving
A pinnacle dive around boulders and through swim-throughs, from roughly 14–30 m.
Freediving
Freediving is not the main use case; this is a current-savvy scuba site.
Snorkeling
Snorkelling is only for calm surface conditions and is not the site's main draw.
Wildlife at Koh Tachai Pinnacle
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Koh Tachai Pinnacle
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Koh Tachai Pinnacle
Average conditions based on logged dives & visits.
No community dive data has been logged here yet. Be the first to record a dive and seed the averages.
