In southern Jiangsu Province, Yangcheng Lake, Shanghai to the east, Suzhou to the west, Beijing-Shanghai Railway, it has a coastline of 9.67 kilometers, winding coastline, full of poetry. The Yangcheng Lake is 17 kilometers long in North and south, the largest in East and west, and 8 kilometers wide. Its area is 117 square meters, and there are two sand ridges in the middle. Yangcheng Lake is divided into three lakes, the east, the middle and the west. East Lake is the largest lake with a water depth of 1.7-2.5 meters, and Zhonghu and West Lake with a water depth of 1.5-3.0 meters.