You know the new campus of Union University. There are some in it. Go straight in, and then you will walk southeast for 2 minutes. Each person/hour 1 yuan, you can rent rackets for free. If you want to get a monthly card, it costs only 30 yuan for a card for three months, as long as they open the door. It's a good deal. Several of our classmates are doing it there. It's convenient and you don't need to bring anything.