Independent write-up on the boulder maze and tidal shaping.
Similan boulder dive with swim-throughs.
Similan boulder dive with swim-throughs.
A Similan or Surin liveaboard operator is the normal way to dive Christmas Point.
Christmas Point is a boulder-and-channel dive on the west side of Similan Island 9, with clustered Christmas tree worms, swim-throughs, and a tide-shaped rocky maze. It rewards careful buoyancy, a steady drift plan, and enough depth comfort to work the deeper rock terraces and the fish life that gathers in the seams when current is running.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
10m - 40m
Depth Note
The boulder field runs from about 10m to 40m, with a famous swim-through around 24m.
Best Season
December-April; November and April can also be excellent shoulder months.
Typical Conditions
A boulder-and-channel route shaped by tidal flow, with swim-throughs and a deep rocky edge.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Plan for deep gas management and a controlled drift through the boulder field; the site can run fast in tidal conditions.
Access Restrictions
Boat or liveaboard access only; use a local operator and match the dive plan to the current.
Legal Notes
Follow national park rules and boat-dive briefings for the Similan Islands.
Community notes to help plan your visit.
Scuba Diving
The site is a maze of granite boulders, swim-throughs, and crevices that rewards careful route choice.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Independent write-up on the boulder maze and tidal shaping.
Dive-center route description with current and liveaboard guidance.
Operator page with the boulder field, swim-throughs, and marine-life profile.
Thai National Parks page with the park season, depth range, and visibility window.
Know this site? Improve Spot Details.

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