HTMS Suphairin 313
เรือหลวงสุพรรณหิรัญ 313
The Newest Wreck in Town
A 44.9m Thai Navy fast attack craft sunk in 2023, still in pristine condition and rapidly colonizing with marine life.
Depth Range
16–28m
Site Type
wreck
Koh Tao & Offshore
Visibility
8–20m
27–30°C
Getting There
15 min boat from Koh Tao
East coast of Koh Tao
Marine Life
Notable Features
- • Sunk 2023 — pristine condition
- • 44.9m fast attack craft
- • Rapidly developing artificial reef
Best Time to Visit
About HTMS Suphairin 313
The HTMS Suphairin 313 is one of two naval vessels sunk off Koh Tao in 2023, making it one of the newest wreck dives in the Gulf of Thailand. The fast attack craft sits upright on the seabed and is already attracting schools of batfish and curious groupers. Being so new, the wreck's structure is crisp and intact, offering an exciting contrast to the more established Sattakut nearby.
Wreck Information
Vessel
HTMS Suphairin 313
Length
44.9m
Sunk
2023
Royal Thai Navy fast attack craft, decommissioned and sunk as artificial reef off Koh Tao.
Tips
Visit now while the wreck is still clean and identifiable. Coral colonization is happening fast.
Experience Required
Advanced Open Water. Wreck specialty recommended.
Location
GPS: 10.0850°N, 99.8300°E