Introduction to Santan Fog Spring: The "Three Pools" waterfall rushes down from the top of the cliff of Yongquan Cave, forming three silver waterfalls with a drop of more than 40 meters, which are gathered into three levels: upper, middle and lower. Youtan: The lower half of Shangtan Waterfall floats high and breaks into jade beads. Under the sunlight, rainbows appear; the second pool is several meters deep and has a surface of about 30 square meters. It is blue in color and the sunlight shines through. The trees shine into the pool, and the five-color stones in the water shine with golden light. From a distance, it looks like a golden boy playing in the water. The locals fondly call it "Jinwatuo"; the pool below is smaller in area, but small and exquisite, like green jade. The plate is decorated with silver-white wavy lace.