If you are thinking of visiting China, Nanjing is a lovely city to visit. Situated on the middle reaches of the Yangtze River it is about a 2 and a half hour train ride from Shanghai. There are many tourist attractions in Nanjing and this lake is one of the most popular. It is situated close to the city and on the metro line so it is easy to access. Nanjing can be quite cold in winter so the best time to vist is from late spring to early autumn.