Introduction to the fourth spring in the world: At the foot of Fan Mountain on the south bank of Dengying Gorge, a large stone suddenly stands upright, like a toad with its mouth sticking out, tongue open, eyes open and cheeks bulging. Behind it, a spring water flows continuously all year round, and the water is clear and sweet. , is a good source of water for cooking tea and wine. This is the famous Toad Spring.