As far as I know, there is no badminton court in Longtousi Park in Yubei District of Chongqing. But you can play badminton in the park, as long as it doesn't affect others and avoid damaging the park facilities.

If you want to find a paid badminton court, you can search nearby, such as finding a badminton court in a local gym, gymnasium or activity center.

I hope this information can help you!