There is a comfortable building on the Milata. This one is older. I'm not sure if there is a swimming pool.
There is also a trillion Wade in Du Ya International Garden Community, which is also relatively old. There is a swimming pool in it, but it is too small.
There is a swimming pool, and the largest and cleanest is Alexander Yoga Hall (Tianyaoqiao Road near Nandan East Road), which has yoga and swimming pool. They only do annual cards and don't travel alone, but now it seems that they also have monthly cards.
If you want to swim alone, just go to the Shanghai Swimming Pool next to the gymnasium. 25 yuan or 30 yuan every 1.5 hours according to the time period.
All swimming pools must prepare their own swimming caps before they are allowed to enter.