The wetland is a transition zone between terrestrial and aquatic ecological system, is a unique, multi-function ecological system  on the earth with a strong ecological purification, has fame of  "the earth's kidney". In recent years, due to the quick development of human predatory, the area of wetland is rapidly shrinking to endanger human survival conditions.Wetland park may be a kind of trial to save the wetlands. This is some pictures of Hainan Changjiang Haiwei Wetland Park.