Yuhuadong is located 7 kilometers south of Jiangle County, Sanming City, Fujian Province, covering an area of 43 square kilometers. Yuhuadong is named after the rock in Jiangle County, 5 kilometers southeast of Tianjie Mountain. It is the largest lime karst cave in Fujian Province. The total length of the hole is about 6 kilometers, with two passages, from Tibetan