Diving into the darkness of the Yangon River, Than Nyunt starts another murky sortie in his months-long mission to salvage a sunken ship using the power of the moon. His target is a 53-metre (174-foot) long cargo vessel resting on the silty riverbed in Myanmar's commercial hub, whose steel carcass will fetch a tidy sum as scrap -- if he can get it to shore. He says he has salvaged around 40 ships, from cargo boats to passenger ferries, since he started diving over four decades ago. IMAGES AND SOUNDBITES