Introduction to Jiutian Cave: is the largest cave in Asia, with a total area of ​​more than 2.5 million square meters and is divided into three floors: upper, middle and lower. There are 40 halls, 3 Yin rivers, 12 waterfalls, 5 spontaneous bridges, 6 Qianqiu fields and 3 natural lakes in the cave. There are many stalagmites and stone pillars in the cave, and stone curtains and curtains are everywhere. The piles of treasures and jade in various shapes are the wonders of Chinese caves.