Gus' Playground and Theresa's Splash Pad (Willmore Park)
✓ Last confirmed for the 2026 season
Where: 7200 Hampton Ave, St. Louis, Missouri
Season: Memorial Day-Labor Day
Hours: typically daylight hours
Cost: free
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A space-themed destination playground in St. Louis Hills where saucer swings and a helicopter climber sit right beside the water play area. The pairing means kids can bounce between dry and wet play without leaving sight of one bench.
When to go. Peak summer highs in St. Louis average 88°F — warm enough for a splash pad through most of the season without being punishing at midday.
If this one's closed or packed
Splash pads close for maintenance, run short seasons and fill up on hot weekends. There are 9 other pads within 5 miles and 28 within 15. These are the ones worth the drive — ranked by shade, toilets and cost first, then by how close they are: