What's interesting in Hefei in winter?

Recommend several interesting places in Hefei in winter: Tang Chi Hot Springs to relieve the cold, Laoshan Island in Chaohu Lake to appreciate the beauty of nature, Weizidong to explore caves, Dashu Mountain to climb high and look far, lakeside wetlands to experience the fresh air, Li Hongzhang's former residence to understand the history, Huizhou Ancient City to feel the charm of ancient buildings, Bao Zheng Cemetery to enjoy the beautiful scenery of gardens, Sanhe Ancient Town to taste the food of water towns, and Anhui Grand Theatre to enjoy artistic performances.