Introduction to Zhonggu Cave: Zhonggu Cave is located under Langfeng Peak. The cave is tall and spacious and can accommodate hundreds of people. It is said that Zhou Wenxing, the minister of Honglu Temple in Ming Dynasty, once practiced in the cave. . There is a cave adjacent to the cave, which is called Xiaodongtian. On the top of the cave are inscriptions on the cliff during the Jiajing period of the Ming Dynasty: "The wall stands ten thousand meters high" and "Xiaodongtian".