Surf: Between Haikou and Sanya, a 320km (200mi) long expressway skirts the coastline. However, once off this major route the road network is poor, so exploring is time-consuming. The NE coast of Hainan, around Wenchang, is hard to access. Tongguling National Nature Reserve is more of a sightseeing area than a surfspot, but it overlooks the islet in the rivermouth at Moon Bay, which sometimes holds up between the close-outs or onshore mush. Environment: There's too much industry around for the river to be clean.