Farmers pick fresh water chestnuts at a pool in Baidian town, Hai'an in Nantong, East China's Jiangsu province, Aug 13. In recent years, Hai'an has continuously strengthened management of the local water environment and improved water quality. The production and quality of water chestnuts have been greatly improved, attracting many tourists to visit and pick chestnuts, effectively increasing local farmers' incomes. [Photo/IC]