Cooling down in sea

Tourists enjoy themselves in the sea, in Sanya, a popular seaside resort on the southern tip of south China's Hainan Province, May 19, 2010. Local meteorologic bureau issued extremely hot weather alert that parts of the regions of the island, including the provincial capital of Haikou, would be hit by the hot wave, with the peak temperature at 38 degree Celsius. [Jiang Tieying/Xinhua]