2 in the basement of East Ring Building A, but there are many people after work and on weekends.

To the west of Red Scarf Park, at the northeast corner of Red Scarf Bridge, there is a sports school and a rubber court. Usually there are not many people, but the weekend is ok.

1Call 0 yuan at will, which is recommended.

At the east gate of Chaoyang Park, if you go to the entrance of the sand raft, there will be a stadium. It's outdoor, the price is unknown, there are many people, and the conditions are ok.