Herman Brown Park Sprayground
✓ Verified https://www.houstontx.gov/parks/playgrounds-spraygrounds.html · confirmed against the parks department

Where: 400 Mercury, Houston, Texas
Season: year-round (weather permitting)
Hours: typically daylight hours
Cost: free
restroomspublic-park
A frog-themed sprayground with a vividly colored play surface and interactive geysers triggered by a push button. A covered pavilion with restrooms and tables sits nearby.
What's on site. OpenStreetMap maps 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 Houston average 93°F. Mornings and late afternoons are far more comfortable than the middle of the day, and shade is worth planning around.
If this one's closed or packed
Splash pads close for maintenance, run short seasons and fill up on hot weekends. There are 2 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: