HTMS Sattakut
เรือหลวงสัตกูด
Koh Tao's Flagship Wreck
A 48-meter decommissioned Thai Navy LCI warship sunk in 2011, now a thriving artificial reef and one of the Gulf's best wreck dives.
Depth Range
18–30m
Site Type
wreck
Koh Tao & Offshore
Visibility
8–20m
27–30°C
Getting There
15 min boat from Koh Tao
Hinwong Bay, east coast Koh Tao
Marine Life
Notable Features
- • 48m intact warship
- • Upright on sandy bottom
- • Penetration possible
- • Rich coral growth since 2011
Best Time to Visit
About HTMS Sattakut
The HTMS Sattakut (hull 742] was a Landing Craft Infantry vessel that served the Royal Thai Navy before being cleaned and sunk as an artificial reef in 2011. Sitting upright on the sandy bottom at 30m with the deck at 18m, it's perfectly positioned for both recreational and technical diving. The wreck has developed an impressive coating of corals and sponges, attracting schools of batfish, resident groupers, and prowling barracuda. Limited penetration is possible through the bridge and cargo holds.
Wreck Information
Vessel
HTMS Sattakut 742
Length
48m
Sunk
2011
Royal Thai Navy LCI (Landing Craft Infantry) vessel, decommissioned and sunk as artificial reef.
Tips
Descend the mooring line directly to the bow. Watch your air/depth — bottom time at 30m is limited.
Experience Required
Advanced Open Water or equivalent. Wreck specialty recommended for penetration.
Location
GPS: 10.0970°N, 99.8290°E