Introduction to the tea pavilion: At the foot of the first pass in the south of the Yangtze River is the Yankou Pavilion, with the inscription "A Path Leads to Jiangsu and Zhejiang" written in Wei style. After crossing the first bridge in the south of the Yangtze River, climb up the pass from the west. The mountains are once steep and there are craggy rocks. Among them, Mopan Stone, Tianguan Stone, Jiangjun Stone and Shunfan Stone are the most amazing.