Tourists enjoy the scenery of the Caofeidian Wetland from a boat in Tangshan city, North China's Hebei province, Aug 29, 2014. Built as a national 4A level scenic area in 2009, The Caofeidian Wetlands Park covers an area of 100-square-kilometers, and abundant biological resources, such as wild plants, crustaceans, insects, fish, and birds. Some of the birds are under first-grade and second-grade protection at the state level. Caofeidian Wetland is also an important stop for birds migrating from Australia to Siberia. [Photo/Xinhua]

Top wetlands in China-beauty of diversity

Scenery at wetland of Heixiazi Island in NE China