Introduction to the middle waterfall: The middle waterfall is on the cliff. You have to climb the "Tongtian Road" and "Tongtian Cave" in the sloping valley on the left side of the cliff to go up. The waterfall is hidden under the sight of tourists, and one has to use the iron rope on the rock wall to descend to the bottom of the stream to see its true face. The waterfall is more than 30 meters high. During the rainy season, the rapids pour down, like a white dragon flying down, which is astonishing. During the dry season, the trickle flows down from the hanging rocks, and in the haze, it looks like a dragon whisking lightly. Therefore, the deep pool under the waterfall is called "Longtan". ".