Introduction to Water Curtain Cave: Located 5 kilometers west of Tongbai County, Henan Province, it is one of the famous attractions in Tongbai Mountain Huaiyuan Scenic Area. The Water Curtain Cave is about 20 meters high from the ground. There is a sculpture of a stone monkey in the cave. The spring water flows out of the stone monkey and is sprinkled in the stone bowl with a tinkling sound. The entrance of the cave is covered by the waterfall pouring down from the top of the mountain, like a bead curtain hanging down. It is designated as "the 41st blessed place in the world" by Taoists.