nan'ao one (南澳一号) is a , wide chinese merchant ship that sank in the sandianjin waters off the coast of nan'ao island, about 5.6 nautical miles from shantou, guangdong, china. accidentally discovered by a group of local fishermen in may 2007, it is currently considered the first late ming dynasty (1368–1644) ship ever found and probably the only one from the reign of the wanli emperor (1573–1620) that china has discovered to date.