The Lengshuikeng region is a low-lying depression which was created when the lava from Mt. Qixing and Mt. Qigu formed a barrage. Water then accumulated, turning the area into a lake, which eventually leaked out and dried up to expose the lake bottom and form today's landscape. The water temperature of the hot springs in this area only reaches 40°C (104°F), far below that of other springs in other areas, hence its name Lengshuikeng, which means "cold water pit".