Heaven River in Cavity: as unique waterfall in cavity, it is over 800m long, which is superposed in four layers;here is one section of it. Since water fall down from top of cavity suddenly, as if Heaven Riverflow into cavity, you must be surprised here. If it rains in rainy season, water of heaven river rush down as if thousandsof horses are running forward, so, it is honored as “The first heaven river in cavity in Asia”. As saying in one poem that “King of Pangumakes this cavity and Founder of Buddha safeguards it; The Milky Way rushes into the forbidden land of King of Dragon”.