You’ll find the best indoor waterparks in Wisconsin Dells! The Dells is home to many incredible waterparks connected to world-class hotels and resorts. It was the ingenious idea of some local resort owners to put a roof over a waterpark attraction and, voila, the phenomenon that is the indoor waterpark became synonymous with Wisconsin Dells. There are a multitude of Wisconsin Dells indoor waterparks and water playgrounds to choose from, with accommodations to suit every fancy. A family vacation isn’t complete without a trip down one of our exciting indoor water slides! They are open year-round, so no excuses when it comes to finding a convenient time to visit. Many of our indoor waterparks are also connected to resorts and outdoor waterparks, so plan your weekend stay today!