The natatorium of National Defense University is located in the Cultural and Sports Center of National Defense University of PLA at No.3 Hongshankou. The swimming pool of National Defense University is an indoor swimming pool. Usually, the flow of people is not large, and non-school personnel need ID cards to enter. Swimming is about twenty or thirty yuan at a time, but I can't get a card. There is usually hot water, so you can take a bath in it.

Swimming and fitness can also go to the National Fitness Center, with complete fitness equipment and spinning bikes. These two gyms are open at the same time. The swimming pool is divided into shallow water area, deep water area and children's swimming area, which gives you more choices and healthier exercise! There are also badminton and tennis courts in the center. You can play sports with your family and friends. I hope my answer can help you.