Boats set sail for fishing on the Dianchi Lake in Kunming, capital of southwest China's Yunnan Province, Sept. 30, 2017. Dianchi Lake officially opened for fishing on Saturday. This year, fishing season is divided into two periods. During the first period from Sept. 30 to Oct. 11, fishermen can catch big fish. During the second period from Oct. 16 to Nov. 20, they can fish for whitebaits and shrimps. (Xinhua/Lin Yiguang)