July 25, 2025
Celebrate National Waterpark Day in Wisconsin Dells!
There’s no better way to beat the summer heat than with a splash at an outdoor waterpark. What better place to do that than Wisconsin Dells, “The Waterpark Capital of the World!®" This summer, we invite you to join us in celebrating National Waterpark Day on Monday, July 28. Did you know the holiday started right here in Wisconsin Dells? Kalahari Resorts & Conventions founded it in 2017. Since then, it has brought even more families together for splash-filled summer experiences.
Why Celebrate in Wisconsin Dells?
There’s no better place to celebrate National Waterpark Day than the Dells. Here’s why:
- Wisconsin Dells has the most waterparks per capita than any other place in the world!
- The U.S. explosion of waterpark fun was pioneered here in Wisconsin Dells: Polynesian Hotel Wisconsin Dells (originally known as The Polynesian Water Park Resort) was the first to introduce the indoor waterpark concept back in 1989.
- Wisconsin Dells is home to…
- With over 200 waterslides and attractions powered by 16+ million gallons of water, there’s something for everyone, from thrill-seekers to those who prefer a more laid-back splash.
Outdoor Waterparks to Visit
Here are some of the top outdoor waterparks in Wisconsin Dells to put on your summer bucket list:
1. Kalahari Resort Waterparks
Celebrate National Waterpark Day at Kalahari Resort Waterparks with a splash, sunshine, and special waterpark activities! Jump on The Smoke that Thunders, a thrilling ride that sends you soaring through a dark tube, around a funnel flume, and plunging nearly vertical. If you like it more mellow, you will enjoy the 750-ft.-long lazy river twisting through the outdoor waterpark. Tip: Make sure not to miss out on the National Waterpark Day foam parties every two hours starting at 12pm!
2. Noah’s Ark Waterpark
Noah’s Ark Waterpark features over 70 acres of waterslides, rivers, and wave pools. Try heart-pounding rides like Scorpion’s Tail and Black Anaconda. Visitors can also enjoy relaxing areas like the Endless River and Kahuna Wave Pool, so it’s perfect for the whole family to run wild.
3. Mt. Olympus Water & Theme Park
For a mix of wet and dry thrills, head to Mt. Olympus Water & Theme Park. This all-day outdoor adventure features wave pools, roller coasters, go-karts, and waterslides galore. Dare to conquer The Rise of Icarus, America’s Tallest Waterslide, cool off in the serene Pool of Delphi, or take on the powerful Poseidon's Rage, a 9-ft. wave pool. Don’t miss Medusa’s Slidewheel, the first rotating waterslide in the U.S., combining the fun of a Ferris wheel and a waterslide in one wild ride.
4. Land of Natura
Explore nature in a whole new way at Land of Natura, America’s Largest Inflatable Waterpark. This unique eco-adventure park offers a one-of-a-kind outdoor waterpark experience in Lake Wisconsin Dells - the largest man-made naturally filtered lake in the world! Jump, swing, and climb on the inflatable play structures or race down Mount Natura on their waterslides. Enjoy beaches, waterfalls, snorkeling, and even the little ones can be included in on the fun at Mini-Waterworld!
5. Wilderness Resort Waterpark
With four indoor and four outdoor waterparks, Wilderness Resort is one of the largest waterpark resorts in the U.S. At the Wild Waterdome Waterpark, you can splash in America’s Largest Indoor Wave Pool, or venture to Klondike Kavern, where you can ride The Hurricane, a thrill slide for the whole family. With many options for outdoor fun, enjoy the “lazy lake” and have fun on tube and body slides of varying thrills and sizes.
6. Chula Vista Resort
Take on the fun at Chula Vista Resort, with outdoor thrills like Howlin’ Tornado and Red Rock Racers, or explore the 120,000-sq.-ft. Adventure Lagoon outdoor waterpark. The wave pool is also a must visit, as it is nestled amongst the pine trees with a scenic view of the Wisconsin River.
7. Great Wolf Lodge
Gather your pack and visit Great Wolf Lodge’s waterpark, full of activities for all ages. Explore the Raccoon Lagoon, perfect for splashing and soaking up the sun. For the more adventurous members of the party, check out Howlin’ Tornado, a raft adventure with twists, turns, and splashes that will have you howling with delight.
Tons of Fun, No Matter the Size
Wisconsin Dells is also home to many hotels and resorts with smaller waterparks and water activities, perfect for delivering big fun for the families with little kids. These cozy getaways offer smaller slides, splash pads, and water features galore! Plus, the convenient size make them perfect for those who need a break between all the fun!
See the full list of properties with water activities in Wisconsin Dells here.