amazingthailand.com · Official Tourism
Tourism page describing the site, coral, and marine life.
Three Trees
Three Trees is a Similan reef-and-drift dive with coral bommies.
Scuba DivingBoatIntermediate5m - 28m
Reef
Boat access, park-ticket rules, and the annual closure window make Three Trees a trip-planned reef/drift rather than a casual day site.
About Three Trees
Three Trees is a Similan Islands east-side reef marked by three trees on Island 9, with a gentle slope, coral bommies, sand patches, and sea fans. It is best treated as a boat-based reef or drift dive that can suit a wide range of recreational divers, with richer coral and fish life on the easier sections and bigger pelagics where the current moves. The site is shaped by park logistics and the annual closure window, so timing matters as much as the underwater profile.
Safety & Access
Site Conditions
Strong current
Safety Notes
The slope is easy to follow, but the moving water and park logistics reward steady buoyancy and a planned boat entry.
Access Restrictions
Use a boat operator, book park entry in advance, and expect the Similan annual closure from mid-May to mid-October.
Legal Notes
Three Trees sits inside Similan Islands National Park, so park tickets, scuba insurance, plastic restrictions, and seasonal closure rules all apply.
Where Is Three Trees?
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Local Intel For Three Trees
Community notes to help plan your visit.
Scuba Diving
Boat-based east-side reef slope with sand patches, coral bommies, and sea fans. Best treated as a drift when current builds, with the easier sections holding the richest reef life.
Freediving
Not a primary freedive site; the boat-based setup and moving water make it better as a scuba dive.
Snorkeling
Snorkeling only works in very calm conditions on the shallows; the main reef features are better underwater.
Wildlife at Three Trees
Species commonly reported at this site, with direct links into their wildlife guides.
Research + Early Community Signal At Three Trees
Conservative research baseline blended with 1 dive by 1 diver.
Access3/5 · Moderate entry effort
Coral4/5 · Healthy coral
Aquatic Life5/5 · Exceptional variety
CurrentModerate current
Recent Visits
1 community dive logs and visit reports for this site.
