There is a large chain gym near Gangxia Bus Station on Shennan Avenue in Shenzhen (next to Golden Shield Theatre). People who have been there say that the environment and courses there are very good. Especially yoga, weight loss and dance training, the effect is particularly good. When you arrive at the community, you can see their billboard with customer service telephone number: 0755-83260258. If you want to experience it for free for the first time, you need to make an appointment by phone.