Being christened "The Waterpark Capital of the World!®" was no small accomplishment. In fact, the math is quite astounding. More than 20 indoor and outdoor waterparks and water playgrounds dot the landscape in this community that pioneered the craze including the state's largest indoor waterpark at the Kalahari Waterpark Resort Convention Center and the world's largest outdoor waterpark at Noah's Ark Waterpark and the world's largest indoor/outdoor combination waterpark at the Wilderness Hotel & Golf Resort. Did you know the nation's first indoor waterpark was actually in the Dells? It's true and that completely transformed the community.