The Hardeep Shipwreck (Koh Samae San)
The Hardeep ship was sunk by Allied bombers in the latter part of World War 2. It was an Indonesian cargo ship which had been commandeered by the Japanese army to run supplies to Thailand where they were building the railway linking the country to Burma. The Hardeep is 64-metres long and lies on her starboard side, just a few hundred metres from the coral island Koh Chang, where the skipper made a vain effort to beach her.
Her hull is largely intact and there is access to the engine room where you can see the huge crankshaft. There are still some fire bricks in place near the boilers.
Time has taken it’s toll on the superstructure and penetration is becoming risky, but it is possible to swim along the deck, through the remains of the superstructure from end to end.
The remnants of the funnel are resting on the seafloor, one end lying in 28 meters of water. The foremast rests nearby. A short swim, following the line of the funnel, will bring you to an unexploded 1000lb bomb sitting upright in the sand.
Although the Hardeep is well illuminated by natural light, it is handy to carry a torch for examining dark corners as well as for enjoying the marine life in it true colours.  There's certainly a lot to be explored just inside.  It seems to me that every time we dive this wreck there's more to see.  Certainly a must for any wreck enthusiast.

After nearly 60 years nature has worked her magic on the wreck and it is home to angelfish, batfish, groupers, stingrays, barracuda, wrasse, butterfly fish, crabs, and nudibranchs.  Surprising things happen here too.  Only a few months back we had the pleasure of having a Whale Shark visit us on the wreck.