The wreck of the HTMS Sattakut

The wreck of the HTMS Sattakut is located about 1 kilometer off the coast of Koh Tao in Mae Haad Bay. Formerly a warship, it served as a transport ship for the Royal Thai Navy. The Sattakut also named LCI-742, It structure is 48 meters long and completely made of steel. Divers can now visit it easily.

Before being commissioned by the Royal Thai Navy it was built and operated by the US Navy in the second world war.

It is in 2011, that the Thai government with the cooperation of the local dive centers and shops, sank the HTMS Sattakut off the coast of Koh Tao. This after the vessel has been cleaned and secured for the future divers and to preserve marine life from the chemicals that might have been on.

The gun at the front of the HTMS Sattakut wreck
The gun at the front of the HTMS Sattakut wreck

The dive on the wreck of the HTMS Sattakut can be combined with the exploration of another dive site called Hin Pee Wee. This site is located just north, less than 3 minutes away for those who know the way. You can ask your guide or instructor in the dive planning.

It allows the teaching of the SSI – Wreck Diving but this certification is not required to go around the shipwreck with no penetration.

Details of the HTMS Sattakut wreck


Depth:16 – 32 meters / 44 – 100 feet
Dimensions:48 meters long by 7 meters wide
Floor type:Steel shipwreck, sandy bottom around
Extra:The gun is still at the bow, cleaned for divers



Visibility:Varies between 3 to 25 meters / 9 to 66 feet depending on the day
Current:From none to strong
Surface:Can be wavy, normally calm
Temperature:Between 27C / 79 F and 31C / 94F


Marines species

Common fishes:Malabar grouper, Brown snapper
Less common species of fish:White-eyed Moray