Xuanwu Lake is located in Xuanwu District, Nanjing City. It is the largest urban park in Jiangnan area. It is also the largest royal garden lake in China and the only remaining royal garden in Jiangnan. It is known as the "Jinling Pearl". Xuanwu Lake is in the shape of a diamond, the total area of the scenic spot is 5.13 square kilometers, and the lake area is 3.78 square kilometers.