How about Tsinghua's fitness?
I like the environment in Tsinghua, with its large area and good facilities. I am a girl, and I invited a personal trainer to give me a class in the South Store, which was very effective! I used to apply for a card in Ginza, but after I went there, I did aerobics. The place was small and I was particularly nervous when there were many people, so I changed from Ginza to Tsinghua.