Originally, Dongfeng and Xifeng grottoes are being strengthened and renovated. No wonder they are not open. No wonder they are free to visit. Tianlongshan Grottoes, built on the top of 1430 meters above sea level, are also difficult for craftsmen. The most precious grotto statues in the loft can be visited, which is also a little regrettable. It's not bad to learn how to inscribe!!!