There is a fee to use the gym at the Hard Rock, as well as the other two properties. I'm not sure on the exact fee, but at RPR the fee for use of the fitness center is $10.00 plus tax per day, but if you purchase the multi day pass then it is $10.00 for day 1 and you get a discount the more days you add on. The passes are good for ONE person only, it is not per room. The only exception is if you are a Loews First Member or if you decide to book a club concierge room. Also note the health club is not open 24 hours, but again I'm not sure what the operating hours are.