Linggu Cave is located in the south of Shiniu Mountain in the southwest of Yixing City. There are seven cave halls inside. Visitors need to walk all the way during the visit. The road inside the cave is not only slippery but also full of twists and turns. Please be careful. Each cave hall has its unique characteristics. Among them, the fourth cave hall - Crystal Palace - has naturally formed stone curtains and stunning karsts, and the fifth cave hall - Jubao Hall - has various kinds of stalagmites, stone flowers and stone pillars.