Nanhu: Located in the south of Hongcun, built in Ming Wanli Dingwei. Hongcun Village has been reproducing from the Yongle years to the Wanli years. The population is not enough to store water in the moon pond alone. In the Wanli years, Ding has 100 mu of good fields in the south of the village, chiselled deep, and built the south lake with masonry on the four sides. The lake is a large bow, the lake embankment is divided into upper and lower layers, and the upper layer is 4 meters wide. The original ancient trees are towering, green and dripping, the trunk green vines are coiled, birds sing, and weeping willows, branches and leaves arena, like a mirror dressing.