Introduction to Shenlongtan (Oil Urn): It is a small-belly-shaped water pool, clean and thorough, and the pool is 4.5 meters deep. The drop is two meters, and the long-term water has washed the rock into a ditch, which is extremely smooth. The two-meter drop causes the flowing water to stir up white splashes. Just like a silver dragon dancing and rushing into the water. During the rainy season, the flow speed increases, stones flow down the water, and the pool churns. The sound is loud and spectacular, so it is called the Oil Urn.