Introduction to the Water Pavilion Stage: Located at No. 4 on the north side of the east entrance of Yijinfang, it was founded during the Wanli Period of the Ming Dynasty (1573-1620). It was originally the residence of the Zheng family. During the Daoguang Period of the Qing Dynasty (1821-1851), it was owned by the Sun Yimou family. There are descendants of the Sun family living there. From west to east, the first one is the main courtyard, the second one is the other courtyard, and the third one is the flower hall and garden. The entire building complex faces south and uses bucket-type wooden frames, covering a total area of 2,675 square meters. After many renovations, it has become three adjacent houses and the largest in the whole neighborhood.