Introduction to the virgin forest: Due to the complex terrain and diverse climate of the second and third level platforms of Yuanwang Cave, it breeds rich plants and many kinds of animals, forming an independent biological system, such as the sea of arrow bamboo and ancient vines. In the ecological park, the ancient camphor, ancient ginkgo, yew, and the "living fossils" aquatic trees, Davidia involucrata, etc. on the mountain, as well as macaques, deer, musk deer, golden pheasants, pheasants, green-tailed pheasants, etc., are clear signs of the ape king. Cave Scenic Area has great ecological value.