Yunlong Lake is Xuzhou's main scenic breathing space, a broad lake edged by parks, paths, causeways, and low hills. It gives the city a softer landscape after the tombs, museums, and busy commercial streets, and it is popular with locals for walks and weekend outings.
The lake is best approached slowly. Pick a section rather than trying to see the whole shore, and combine it with nearby hills or other western Xuzhou sights if you have time. In good weather it is one of the easiest places to understand how the city relaxes.