Introduction to Beimou Cave: Beimou Cave is the first of the six caves in Yinshan Mountain. The entrance is narrow, the chamber is white, and there is a hole in the cave, shaped like a skylight, which is bright and bright. The entrance to the cave is dotted with cliff stone carvings dating back to the Song Dynasty, including "A Journey to the Hidden Mountains" written by Li Bo, the governor of Guizhou in the Tang Dynasty, and "Inscriptions on the Hidden Mountains" written by Ruan Yuan, governor of Guangdong and Guangxi in the Qing Dynasty.