Zhangjiajie Chaoyang Ground Seam Scenic Area is located in Chaoyang, Cili County, and is the world's longest "first-line sky" wonder, with a total length of 5 kilometers and a vertical depth of nearly 200 meters. The cave is beautiful in the rocky luster, weird shape and atmospheric scale. Chaoyang ground seam is a 100-meter-deep cliff seam formed by the running water of Zhaojiayu reservoir area after hundreds of millions of years, and the narrowest of the two cliffs is only more than one meter wide. The scenery is a combination of wonder, show, danger, wild and secluded. The stream in the scenic area is clear, the air is fresh, the winter is warm and the summer is cool, and the four seasons are like spring. It is a good place for tourism, summer leisure, and exploration.