About eight kilometers. Julong Lake refers to Qinglong Lake, which is located in Julong Lake Park, Renmin South Road, Yancheng City, Jiangsu Province, with a circle of 8 kilometers by the lake. It is a national 4A-level tourist attraction, and people often run in parks. Julong Lake is located in Yannan High-tech Zone, Yancheng City, Jiangsu Province, adjacent to the administrative center of Yancheng City. Julong Lake is an artificial lake with a total investment of 357 million yuan and an area of 500 mu. The project started in early 2008 and is the core plot of Yannan High-tech Zone. Based on the original terrain, the lake covers an area of 360 mu, including park water rhyme stage, music fountain, Jiuqu trestle, Qingfeng Pavilion and Shuiyunxuan.