How about the railway staff fitness activity center?
There is only one badminton court near my home. I have to go. Non-members will turn off the lights for you for one hour. Once I went to the whole gym to play ball, I immediately turned off the lights for an hour. I went there so many times, not without human feelings. Mulberry heart, 50 an hour for non-members and 40 for members. 5:30-8:30 am is cheaper. 10 yuan.