1, Jiangnan Spring Resort Hotel. Venue: Guxing Town, northwest suburb of Tsinghua-Jiangnan Community.
2. Jinshui Sunshine Hot Spring Resort Hotel. Venue: Northwest corner of the intersection of Liu Xin Road and Fengqing Road.
3. Haicheng International Business Hotel. Venue: Southwest of the intersection of Xizhan Road and Qinling Road
4. Perfume Palace Hotel. Venue: Southeast of the intersection of Nongye East Road and Shangding Road in Zhengdong New District
5. Beidaihe Business Hotel. Northwest of the intersection of Shangcheng Road and Zijinshan Road
Most of the above are bath centers, and there are some swimming pools for pure winter swimming as follows:
1, Henan Provincial Gymnasium, Shengli Road, Wenhua Road.
2. Zhengzhou Experimental Middle School, Wenhua Road Agricultural Road
3. Wuzhou Hotel, Fengle Road, Dongfeng Road (formerly Roasted Goose)
I have been to most of the above places because I like swimming. I hope other experts will add.