A reasonable gym situated on Haidian Island in the north of Haikou. There are free weights, exercise machines, ping pong tables and some classes. Don't expect too much, but there is enough equipment for a decent work-out.
Location: opposite the Haikou Banana Hostel.
Price: 1 month 200 RMB or 100RMB if you are a student.
6 months 660RMB.