Introduction to Chongming Dongtan International Wetland: Chongming Dongtan International Wetland is located at the eastern end of Chongming Island in Shanghai, at the mouth of the Yangtze River, with a total area of ​​326 square kilometers, of which the water area is 146 square kilometers. Chongming Dongtan International Wetland is not only a good feeding and habitat place for birds, but also a good place for the general public to relax, travel and watch birds.