On the first day of Qianjin Street, there is fitness and swimming, so it is quite cost-effective to get a student card. In the Aviation University Swimming Pool on Prosperity Road, you can go to Taobao to search for tickets, which seems to cost more than RMB 10 at a time, but you can only swim. The condition of the University of Science and Technology Huayuan Fitness Center on Satellite Road is good, and the water quality is said to be similar to that of the Water Cube. I don't know if it's true or not, but the water quality is really good. Swim 30 times is almost enough. The swimming pool of Changchun University for Retired Veteran Cadres behind the Cultural Square is also relatively cheap, but the conditions are average. Then swim in hotels like Shangri-La. The pool is small, but the advantage is that there are few people. Almost as much as I know about Chaoyang District.