Just one of the offerings at the Dells (the "Waterpark Capital of the World") is the nation's largest indoor wave pool. Towel off: Catch Jeremy Allen's Grand Illusions show.
Have a race uphill on dual coasters, float away on two intersecting rivers, then retreat to your private cabana. Towel off: Visit nearby Moody Gardens, an indoor eco-adventure park/rain forest, where you can take a biologist-led tour to meet penguins when they return to the aquarium in March.
This tropical-theme park offers splashy fun in the three-story slide tower and wave pool with waterfalls and 3-foot waves. Towel off: Shop tax-free at 60 stores at Settlers' Green Outlet Village.
Being a ski mountain locale means you can snowboard, surf, and waterslide in the same day. Between activities, you can help your muscles recover with a massage at the spa. Towel off: Head to Camelback Mountain's 42-lane snow tubing park.
Don't miss the 10-story raft ride at this splash palace just 1 mile from the Mall of America. See-through slides route riders outside the building. Towel off: Try a ropes course and visit the aquarium at the mall.
Adults and kids can buddy up on slides, and with options for beginner swimmers and an indoor-outdoor hot tub, everyone’s happy. Towel off: With a resort activity card, you can get discounts at nearby Grand Caverns and other activities.
Splash and learn at this water park/science museum that teaches about the power of water. Four slides start from the roof a 747. Towel off: Check out the science and aviation exhibits at the adjoining museums.
An African-theme adventure near Lake Erie boasts a 500-foot Zip Coaster with 30-second free falls. Towel off: Put together your own package to include perks such as game room passes and spa credits.
Who says you can't surf in the middle of the Rockies? Grab a board and catch a wave on the FlowRider, then try the Warm Spring, a spa-like pool that's slightly cooler than a hot tub. Towel off: Snow sports galore.
Choose your own adventure: a tree house connected by suspension bridges, the wave pool, or an agility course set in a pool. At the hotel, your family can head down to the lobby in pj's to enjoy evening story hour. Towel off: Take a ride in a real NASCAR vehicle at nearby Charlotte Motor Speedway.