West Lake, located at No.1 Longjing Road, West Lake District, Hangzhou City, Zhejiang Province, China, is in the west of Hangzhou City. The total area of West Lake Scenic Spot is 49 square kilometers, the catchment area is 21.22 square kilometers, and the lake surface area is 6.38 square kilometers.

The lake is surrounded by mountains on the west, west and north sides. The lake is divided into several water surfaces by the White Causeway, the Su Causeway, the Yanggong Causeway and the Zhaogong Causeway. The outline of the lake is nearly elliptical, and the bottom of the lake is relatively flat. The average water depth is 2.27 meters, the deepest is about 5 meters, and the shallowest is less than 1 meter. The natural surface water source of West Lake is Jinsha Stream, Longhong Stream, Chishan Stream (Huiyin Stream) and Changqiao Stream. The West Lake is located at the edge of the hills in southeast China and the northern edge of the central subtropical zone. The average annual total solar radiation is between 100-110 kcal/cm2, and the sunshine duration is 1800-2100 hours.