Introduction to Xinshen Cave: Xinshen Cave has the reputation of "the first cave in China" and is the most representative, ornamental and research cave among the Jianshui caves discovered so far. Xinshendong was developed in the Cambrian gray white rock, dating back about 500 million years. It has complex geological structure, continuous stratigraphic structure and clear landform features. The cave is currently open to the public for 1,000 meters. The air inside the cave is fresh, the sediments are rich, and the shape is unique. It is steep, dangerous, weird, majestic, and strange.