Visibility, current, and training context.
Advanced wreck off Racha Yai.
Advanced wreck off Racha Yai.
Marla's Mystery is a deliberately sunk barge wreck off Racha Yai's east side, built as an artificial reef and lying deep enough that it suits advanced divers rather than casual reef trips. It is a boat-access wreck with swim-through holes, marine life in the hull, and the kind of planning that rewards buoyancy control, gas awareness, and a guide who knows where the wreck sits. The site is memorable because it is compact, structured, and intentionally built to attract fish.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
30m - 35m
Depth Note
Deliberately sunk barge wreck with swim-through holes and a compact deep profile.
Best Season
Year-round; calmer and clearer Andaman conditions are usually best.
Typical Conditions
Artificial reef wreck on the east side of Racha Yai with weak to moderate current and a compact profile.
Site conditions, restrictions, and access requirements.
Safety Notes
This is a deep wreck dive; appropriate deep-diving training and gas planning are recommended.
Access Restrictions
Boat access only; advanced certification and a solid site briefing matter more than a simple swim-in.
Legal Notes
Follow Thai dive-operator guidance and depth-certification checks.
Community notes to help plan your visit.
Scuba Diving
Good for wreck training, deep practice, and controlled swim-throughs around the hull.
Freediving
Not a freedive site.
Snorkeling
Not a snorkel site.
Species commonly reported at this site, with direct links into their wildlife guides.
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
Visibility, current, and training context.
Boat access and swim-through wreck notes.
Artificial reef history and certification depth.
Official Phuket and Ko Racha Yai diving context.
Know this site? Improve Spot Details.

Protected Phuket bay with shallow reef and shore access

Easy shore reef with rocks, wall structure, and lively fish life.

Shallow Kata Beach shore dive with macro critters and nursery feel.

Koh Pu is a Phuket beginner-friendly reef and boulder dive.

Karon Rock is a shallow shore dive off Karon Beach.

Karon cubes: offshore concrete artificial reef off Karon Beach.