Originally known as the No. 49 bubble, Wusu Langzi Lake has a water area of 135 hectares and an average water depth of 2.5 meters. It is surrounded by mountains, the water surface is like a mirror, and the water is plump. It is rich in cold water fish such as squid and white fish. According to the landform and water distribution characteristics of the Wusu Langzi Lake, it may also be a crater lake formed by volcanic eruptions. In the prodigal lake, only the self-driving Aershan has the opportunity to witness this beautiful scenery. High and low birch trees, blue sky and white clouds hanging over the top of the head, the blue lake, the cool autumn wind, come here to want to let go of all the constraints to be a prodigal, free to enjoy the gift of this world.