DEFY. Louisville, Louisville

Inside each Sky Zone location, a wall-to-wall half-pipe made entirely of trampolines gives children and adults a venue where they can safely hop, bounce, and somersault to their hearts' content. The vast, taut, springy flooring doesn't end at the walls, but instead, the trampolines continue upward to form angles perfect for crawling up, springing off, or sliding down.

Visitors can meander along the bounceable terrain in the open trampoline arena, throw themselves into giant foam pits, or sharpen their competitive edge in trampoline-assisted sports such as dodgeball. SkyRobics classes merge gravity-defying fun with fitness during instructor-led workouts that include calisthenics, core exercises, and strength-building aerobics to help guests shed calories without hurting their joints.

Some of the activities and attractions include:

• Ninja Warrior Obstacles: Release your inner ninja on obstacles that will test your balance, agility, and other ninja skills.

• Extreme Dodgeball: An arena built with trampolines lining the walls and ground that elevates the classic gym class game to new heights.