Introduction to Longtan: Longtan is located under a waterfall more than 80 meters in front of Crocodile Pool. The pool is very deep and large. The green water reflects the ancient trees and vines on the wall of the pool and the colorful trees, flowers and fruits of the green mountains on both sides. . There is a small bridge in front of the pond connecting the two sides. Deep pools, flowing water, small bridges, ancient vines, old trees, and wild fruits form a wonderful ink painting.