McDonald Park Splash Pool
✓ Last confirmed for the 2025 season
Where: 4200 Utah St, St. Louis, Missouri
When: seasonal (summer)
Hours: 6 a.m.-10 p.m. (park hours)
Cost: free
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A compact neighborhood splash pool in Tower Grove South that shows up on the city parks department's official spray-and-wading-pool roster. Its small footprint makes it easy to keep eyes on little ones.