The willow leaf lake is named after the lake is like a willow leaf, it is a natural lake formed 50,000 years ago, and belongs to the part of Xidongting Lake. Located in the northeast of Changde Ancient City, Hunan, Dongting Lake in the east, Lishui in the south, Wuling Mountain in the west, and Sun Mountain in the north, it is a composite tourist resort area integrating mountains, water, pastoral and urban, known as the "first lake of China" and "water paradise surrounded by cities".