Introduction to the Three Lakes of Xijing: There are three natural lakes on Xijing Mountain - Shuanglin Lake, Biyun Lake, and Qin Lake. The lakes are surrounded by green mountains and are green all year round. The emerald is like a beautiful huge harp hidden in the famous mountain, rippling in the blue waves. When you are in it, you can hear the sweet harp sound of the lake and the natural sounds of nature.