Introduction & nbsp; Before the Qing Dynasty, its original name was Lingyan or Lingdong. It is located at the foot of Baihua Mountain, 1 kilometer northeast of Lingyun County. Outside the cave, there are four peaks, towering ancient trees, birds chirping, and the river is rippling with blue waves. As early as the Kangxi reign, there was a temple in the entrance hall with Buddha statues, and the incense was very popular, attracting many visitors. The entrance of the cave is spacious, with a width of over 30 meters and a height of 30 meters. The cave is divided into three layers, with exquisite rocks and bright sunlight. Many famous poets and literati have left many poems and inscriptions inside the cave. Among them, the highest cliff at the top of the cave is engraved with the majestic and vigorous four characters "First Cave Heaven", which was inscribed by Wang Yude, the Left River Observer in the 43rd year of the Qianlong reign (1778). The cave is 500 meters long and has an underground river that flows throughout the year. The cave is filled with various shapes of stalactites, stalagmites, stone railings, and stone flowers. At present, there are 14 scenic spots under development, including "Double Lion Dialogue", "Zhenbao Flower Cat", "Breastfeeding Golden Lion", "Shouweng Bangtao", "Leading Camel", "Tongtian Pagoda", "Golden Lion Exploring the Sea", "Ancient Cave Lingzhi", "Lingxu Buddha Hand", and "Quiet Room". The underground river flowing out of the cave becomes the "water source" of the Chengbi River, so the water source cave is also known as the "father of the Chengbi River". The average annual flow rate is 9.03 cubic meters per second, the average dry flow rate is 1.2 cubic meters per second, and the underground river has a drop of 200 meters. A low wall is built along the waterfront, which can be used as a railing. Looking at it from the wall, the water flows rapidly, like rushing waves and thunder, shaking the valley. The stalactites in the cave have an ancient structure and various shapes. There were dozens of Buddha statues that no longer exist