O'Fallon Family Sports Park Splash Pad
✓ Last confirmed for the 2025 season
Where: 301 Obernuefemann Road, O'Fallon, Illinois
When: Memorial Day weekend-Labor Day weekend
Hours: 10:30 a.m.-7:30 p.m. daily
Cost: free
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The Metro East's biggest free splash pad sprays from arches, dumping buckets, a spider-web feature, fountains, and a play creek inside a sprawling sports park with playgrounds, trails, and public restrooms. The unsupervised pad requires adult supervision for kids under 10 and swim diapers for the not-yet-potty-trained.