SS Suddhadib / Hardeep
เรือสุทธาทิพย์ / ฮาร์ดีป
WWII Combat Wreck
A genuine WWII combat wreck — a cargo ship bombed and sunk by Japanese aircraft in 1942, now one of the Gulf's most historically significant dives.
Depth Range
26–28m
Site Type
wreck
Pattaya & Sattahip
Visibility
5–15m
26–29°C
Getting There
2 hr boat from Pattaya
~60 km from Pattaya
2 Jul
3 Jul
4 Jul
5 Jul
6 Jul
7 Jul
8 Jul
Marine Life
Notable Features
- • Genuine WWII combat wreck
- • Bombed by Japanese 1942
- • 100m wreck on its side
- • Historical pilgrimage dive
Best Time to Visit
About SS Suddhadib / Hardeep
The Hardeep (originally SS Suddhadib) is the Gulf of Thailand's most important historical wreck — a British-built cargo vessel bombed and sunk by Japanese aircraft on June 26, 1942 during WWII. Lying on her port side at 26–28m, the 100m wreck is remarkably well-preserved. Massive groupers and schools of barracuda inhabit the wreck, and the hull is covered in soft corals and sponges. This is a pilgrimage dive for wreck diving enthusiasts.
Wreck Information
Vessel
SS Suddhadib (Hardeep)
Length
100m
Sunk
1942
British-built cargo vessel bombed and sunk by Japanese aircraft on June 26, 1942 during WWII.
Tips
Long boat ride — 2+ hours. Plan for a full day. Nitrox recommended for extended bottom time.
Experience Required
Advanced. Deep speciality or technical certification recommended.
Location
GPS: 12.5320°N, 100.9550°E
Learn to Freedive in the Gulf of Thailand
Sites like SS Suddhadib / Hardeep are what the Gulf has to offer. Get certified with us on Koh Samui — train at Sail Rock and Koh Tao in groups of no more than 3, skip the Koh Tao ferry, and dive the best of the region.
New to freediving? Get the free beginner's guide first.