I always thought that Xuanwu Lake was a treasure left by heaven to Nanjing people. Along the northeast line of the Beijing city wall of Nanjing Ming Dynasty, it happened to be the moat on this side. The squatting purple mountain is not far from here, and Wuzhou (the five small islands in the lake, respectively, are Huanzhou, Cuizhou, Liangzhou, Sakura, Pazhou) are planted with trees and flowers, which reflects the characteristics of Nanjing City "Landscape City Forest". I thought that the spring tour of Xuanwu Lake is the best, you can boat on the lake, you can enjoy all kinds of beautiful flowers. And one of the three famous lakes in the southern Yangtze River (or China's largest royal lake) is free.