Introduction to Tang Huai Pavilion: Tang Huai Pavilion is located on the west side of the winding road on the mountainside. Legend has it that the ancient locust tree next to the pavilion was the tree where General Qin Qiong tied his horse to. There is a sapling growing in the hollow, so it is also called "Mother-Based Sophora japonica", and the pavilion is named after the tree.