Zhenyuan Tiexi Scenic Area Longtan, is also the back garden of Zhenyuan, the stream is very clear, and the water of Longtan Lake is emerald-like bright. In addition, the first cave in southern Anhui Tianqinglong Cave, the mountain is upright, the cliffs, the huge rocks, the caves and the temples of the three religions are integrated, the Tao, Confucian, Buddha, and the three religions are on the mountainside, and the house built on the cliffs is indeed a miracle.