Guyu Lake, a national AAAA-level tourist scenic spot, is located in Longchang City, Sichuan Province, 2 kilometers away from the city, is an important part of Longchang's three ancient trips (the other two are Shipaifang and Yundingzhai). The lake area is about 5 square kilometers, and the entire scenic spot is composed of the ancient Yuhu Shengdeng Mountain area and the Genting Mountain area. Guyu Lake is an artificial medium-sized lake built in the 1970s. The lake area is 5.4 square kilometers, the longest in the east and west 7.5 kilometers, the widest in the north and south 2 kilometers, the maximum water depth is 27 meters, the average water depth is 15 meters, the reservoir capacity is 56 million cubic meters, there are many islands and peninsulas in the lake, and winter is a paradise for migratory birds.