Activities · Destination Guide
Wrecks, coral gardens, and slow-island beach days in Thailand's eastern Gulf
Updated Jan 23, 2026 • 16 sources
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Koh Chang is the eastern Gulf's wreck-and-reef playground: two-tank day boats hit the HTMS Chang Wreck for big structure and schooling fish, then switch to shallower national-park reefs for coral gardens and macro life. Add Koh Mak for easy training dives and park access, or Koh Kood for quieter sites and relaxed schedules. Operators like BB Divers (Koh Chang and Koh Kood) and Koh Mak Divers make it simple to combine islands on one trip.
A pinnacle dive often described as an underwater cathedral, with interesting structure and marine life down to about {{ 30 | distance:m }}.
A coralrich reef with a shallow profile down to about {{ 18 | distance:m }}, ideal for long bottom times, buoyancy practice, and relaxed photography.
A sandy and rocky slope with hard and soft corals, generally maxing out around {{ 15 | distance:m }}.
A shoreaccessible reef around {{ 12 | distance:m }}, well suited to beginners and check dives, with a mix of hard corals and common reef fish.
A purposesunk former landing ship with a depth range around {{ 30 | distance:m }} to {{ 35 | distance:m }}.
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