The Bohai Sea is located in Dali City, Yunnan Province, at an altitude of 1974 meters, and is a plateau tectonic faulted lake. The area is about 250 square kilometers, about 40 kilometers south of the south, and about 8 kilometers east and west. The west is a bit of Cangshan lying horizontally like a screen, and the east is surrounded by Yu'an Mountain. The space environment is beautiful. Bohai has water supply, agriculture and irrigation, power generation, fisheries, shipping, tourism and temperature adjustment functions. There are Jinling Island, Yuji Island, Chiwen Island, Nanxun Island and so on in the sea. There are many places of interest and monuments around the sea, and there are transportation vehicles around the lake, which is convenient for tourists to travel by themselves.