Trying to train for a marathon and don't wanna run in the heat? Check out Cosmopolitan's Fitness Center. They have like 10+ state-of-the-art treadmills.
Do you feel like punching someone in the face? They also have a boxing ring and punch bag for your workout.
Wanna play a game of tennis? 2 tennis courts are available!
I think the daily use is $20 but it's waived if you get a spa treatment done.