America's Coolest Indoor Water Parks

The Hurricane would knock your socks off, if you wore any. Riding in a four-person raft, you zoom down a 45-degree angle, scoot across a funnel at 20 mph, experience weightlessness, then drop into a splash pool—all while sound effects, strobes, and fog enhance the “hurricane” effect. Guests can take advantage of the resort’s three other indoor water parks: child-focused Cubby’s Cove, Wild WaterDome with a massive wave pool, and Wild West, which offers a Black Hole thrill ride and bumper boats that look like flying saucers. Registered guests only. wildernessresort.com

With elephant figures squirting water from their trunks and bright car-rafts for tykes traveling down the Lazy River, Palmetto caters to the younger set. Resort guests pick up speed at the Palm Water Park, though, with its raucous Wild Winding Waterslide, and they accelerate even more on the Speed Slide. Still, Palm reveals its lighter side with a yellow-and-orange Silly Submarine full of holes and spraying water. Registered guests only. dunesvillage.com

So what if Idaho lies 400 miles from an ocean—that hasn’t stopped Silver Rapids from hosting surfing competitions. Guests learn and improve with stand-up surfing lessons on the standing-wave FlowRider; for extra fun or practice, rent the FlowRider after hours. The park’s clear roof lets you tan while you surf, shoot water-basketball hoops, or dodge spraying fountains. Registered guests only. silvermt.com

Sure, this water park’s 10 slides, 2,000 feet of sliding surfaces, and 91,000-gallon wave pool deliver thrills, but they’re also designed to inform about the power and science of water. Kids can build “tsunami-proof” models in classrooms and test them in the wave pool. And along the climb up 111 stairs to the Boeing 747 on the roof, posters explain how the plane “landed” there. The plane is the starting point for four water slides, including one that drops six stories. evergreenmuseum.org

Large murals display lush, tranquil Polynesian scenes, but don’t be fooled: the rides and slides will get your adrenaline pumping. You can reach 40 mph while sliding down the Hurricane Hole, and other ride names also go for the extreme (Cyclone, Black Hole, Shark Attack, Python Plunge, Aqua Tumbler, Big Kahuna, Maui Wowie). When speed demons want a change, the Frog Pond whirlpool features tall amphibians, giant mushrooms, lily pads, and splashing “LeapFrog” fountains created by local artists. splashlagoon.com

The Torrent River sends inner-tubers along a quarter-mile-long, 20-foot-wide wave-filled “river” circling past the twisting-in-the-dark Guada-Loopy Tube Chutes raft trip, the Faust und Furious enclosed-tube ride, and Torrent Beach. Want more waves? Go boogie boarding on the Boogie Bahn. Want fewer? Chill near the Beached-Boat Slide in the shallow Wasserfest Kids’ Area. schlitterbahn.com

Going with the flow of Minnesota’s nickname (Land of 10,000 Lakes), the St. Croix River ride carries visitors in tubes near the Lake Superior wave pool and past Lake Itasca; surfers tackle waves on the Cascade Falls FlowRider. The 90-foot-tall Eagle’s Nest Tower anchors four wild slides: the 10th Floor Body Slide is the fastest while the Eagle’s Nest Family Raft zips groups of four through more than a mile of twisted tubing while dropping 10 stories. waterparkofamerica.com

The ceiling looks like it was made of palm fronds, and such tropical decorations give the park the feel of a giant tiki hut. At the “beach,” alternating patterns of three-foot crisscrossing waves in the 67,000-gallon Wiki Wave Pool create challenges for body surfers. Want an outside view? From the top of the Slide Tower, guests look out at Mount Washington, and in winter they can scoot down the slides while watching skiers schuss down the slopes of Mount Cranmore. Registered guests only. kahunalaguna.com

The resort’s African motifs extend to the water park, where rides include the Crocodile Cove (a 3,000-square-foot activity pool), Cheetah Mat Racers (a four-lane competitive slalom racing slide), Rippling Rhino (a 400-foot-long enclosed family-raft slide), Tanzanian Twister (combination flume and funnel), and the lazy Zambezi River. At 173,000 square feet, Kalahari is America’s largest indoor water park—no wonder it can hold so much of “Africa.” kalaharimedia.com

When the clock tower chimes at this quirky Alpine village–like water park, the four-story Splasherhorn playhouse dumps an 800-gallon liquid “avalanche” on the “streets,” building fronts, and citizens below. The adventurous can ascend a climbing wall while water pours down from above or go boogie boarding on the Rip Zone Surf Simulator. avalanchebay.com

Visitors don’t need any “pyramid power” from the wood-and-glass triangular-sided roof covering the park to get energized—they get enough charge from surfing the Pipeline FlowRider and tubing the 440-foot-long Peak Splash slide with 2,000 gallons of water whooshing by every minute. Under the pyramid’s apex, the Massanutten Meltdown has waterfalls, slides, stairs, water cannons, giant snowflakes, and a tipping bucket that’s taller than a bear. massresort.com

The Hurricane’s Vortex is a big inflated-raft ride that drops guests down 45 feet to calm water. Give it a whirl, then see how it compares to the Screamin’ Banshee and the Tsunami Washout Wave Pool. And do watch out for Toukie’s Big Deluge: a 250-gallon Pineapple Splash Bucket that pours onto vacationers. With all this frenzied activity, it could be hard to believe the environs are inspired by the languidly tropical Florida Keys. Registered guests only. keylimecove.com

Take three friends, sit in an oversize yellow raft, drop down a tube into a six-story-tall funnel, spin up and around, splash-land in a pool of water, and repeat. That’s the fun of rides on the Howlin’ Tornado. The thrills continue at the Mountain Edge Raceway, where you zoom headfirst down a four-story slide with bumps and sharp turns while racing your friends. Little kids have plenty of slides and pools for their splashing fun, too. Registered guests only. greatwolf.com

A retractable roof covers 40,000 square feet of pools, tube slides, body slides, and the languid Lost River. You could hang out in Treasure Lagoon’s Vortex, a round pool with whirling water, or navigate Buccaneer Bay’s 10 platforms and nearly 50 interactive features. Over in the Splish Splash Pool, the smallest visitors can just reach their toes into the water from bouncing chairs swinging from a palm tree. bigsplashadventure.com

A nine-foot-tall cascade feeds the 1,000-square-foot Basketball Cove (two hoops for water basketball) while Big Bear Falls features a 500-gallon “deluge bucket” shooting water out in a big circle. The biggest cascade is the 30-foot-wide, 13-foot-tall waterfall pouring into the Whitewater Wave Pool. For tiny tykes, Little Bear Falls emits tickling bursts of water and air bubbles. cascadesindoorwaterpark.com

The S.S. Minnow, billed as a “baby shipwreck recreation pool,” shoots water jets and sprays up from the floor. Kids can hop on a floating sea monster or a crab or a snake; if their favorite water animal is a turtle, they should head for the three large turtles at the whirlpool dubbed the Turtle Tub. blueharborresort.com

WaTiki has over 30,000 square feet of swimming pools and waterslides, with a pool generating waves cresting up to four feet tall and with two slides that shoot riders out at 35 mph. An indoor zipline lets you glide over the pools below. Adults, though, may prefer to make a beeline for the new indoor-outdoor hot tub with a swim-up bar. With four surrounding hotels, plus an expansion to newer hotels in the area, it's easy to stay close to all action at the waterpark. watikiwaterpark.com