Two wrecks that he has often visited are the British Royal Navy battlecruiser HMS (Her Majesty’s Ship) Repulse and battleship HMS Prince of Wales. They sank off the coast of Kuantan, Malaysia on Dec 10, 1941 under Japanese attack.
On a trip in 2013, he noticed a propeller missing from the stern of the 242-metre-long Repulse, which lies about 50 metres underwater at its shallowest point.
“We’re talking about a huge propeller, bigger than the size of a bus,” he told the programme Undercover Asia. “It’s gone. We used to see small-time salvagers, and they just dive for scrap metal, but this is something else altogether.”