Indoor Waterpark Resorts in Illinois
3 resorts in Illinois with an indoor waterpark on site, in Galena, Gurnee, Utica. 2 offer day passes according to their own websites. Hours change by season, so check the resort's calendar for your dates.
Country Inn & Suites by Radisson, Galena, IL
- Indoor waterpark
- Indoor pool
- 72-foot waterslide
- 12-person hot tub
- Kiddie pool with frog waterslide
Checked on the resort's own website, Nov 2, 2026
Great Wolf Lodge Illinois
- Indoor waterpark
- Day passes offered
- 80,000 sq ft indoor
- Water fort treehouse
- Tipping bucket
- Raft slide
- Lazy river
Checked on the resort's own website, Nov 2, 2026
Grand Bear Resort at Starved Rock
- Grand Bear Falls
- Day passes offered
- 24,000 sq ft indoor
- Wave pool
- Lazy river
- Slide tower with body slide and tube slide
- Kiddie pool
Checked on the resort's own website, Nov 2, 2026