Gateway Arch Splash Pad
✓ Last confirmed for the 2024 season
Where: 1 Lenore K. Sullivan Blvd, St. Louis, Missouri
Season: seasonal (summer)
Hours: 5 a.m.-11 p.m. (grounds)
Cost: free
zero-depthattraction
The splash area at the front of the Gateway Arch grounds lets kids cool off with the 630-foot monument towering directly overhead. It is one of the few splash spots in the country set inside a national park.
What's on site. OpenStreetMap maps drinking water, playground alongside, parking at this location. No public toilets are mapped here — worth knowing before you commit to an afternoon.
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 12 other pads within 5 miles and 29 within 15. These are the ones worth the drive — ranked by shade, toilets and cost first, then by how close they are: