Milan, Michigan, a small, 2.5-square-mile city in Monroe and Washentaw counties, does not have any indoor water parks as of 2010. However, its proximity to Ann Arbor and a few larger cities make finding an indoor water adventure a simple matter. Within an hour's drive of Milan you can find five water parks, three of them indoor parks.
Splash Universe in Dundee, Michigan, is about a 14-minute drive on Highway 23, making this the closest indoor waterpark to Milan. Splash Universe features waterslides, an inner-tube river grotto, a special pool for small children, a floating log walk, and a hot springs hot tub for adults.
Splash Universe Indoor Waterpark Resort
100 Whitetail Drive
Dundee, Michigan 48131
877-752-7482
http://riverrun.splashuniverse.com/index.php
The Summit On The Park Aquatic Center in Canton, is a 33-minute drive north from Milan. Though not strictly a water park, it's definitely more than just a space with an indoor pool. In addition to its lap pool and therapy pool, the Aquatic Center features a leisure pool with a 30-foot waterslide and lazy river.
The Summit On The Park Aquatic Center
46000 Summit Parkway
Canton, Michigan 48188
734-394-5460
http://leisure.canton-mi.org/summit/aquatic.aspx
The Kennedy Hills Recreation Center is located in Trenton, a 58-minute drive east from Milan. Recently renovated, this center offers a pool with two diving boards, a lap pool, a waterslide, a leisure pool with nine water features and a sand volleyball court.
Kennedy Recreation Center
3101 West Road
Trenton, MI 48183
Phone: (734)676-7172