24 Hour Fitness opened Dec. 8 at 1601 N. Hardin Blvd., McKinney. This location, also called the McKinney Super-Sport Gym, includes studio classes, personal training, a kids club, group cycling, free weights, cardio equipment, an indoor lap pool, a basketball court, a sauna, a steam room, strength machines, a turf zone and a whirlpool. 469-678-3840. www.24hourfitness.com