Mill Park Splash Pad
✓ Last confirmed for the 2026 season · confirmed against the parks department
Where: 1949 SE 122nd Ave, Portland, Oregon
Season: June 5 - September 7 (Labor Day)
Hours: 11:00am-7:00pm daily
Cost: free
zero-depthpublic-park
Recently renovated, Mill Park brings a fresh splash pad to the Mill Park neighborhood of outer Southeast Portland along 122nd Avenue.
What's on site. OpenStreetMap maps toilets on site, drinking water, playground alongside, parking at this location.
When to go. Peak summer highs in Portland average 80°F — warm enough for a splash pad through most of the season without being punishing at midday.
How long it's open. Roughly 13 weeks a year, from June to September. Seasons shift year to year and municipal pads often close early for maintenance, so check before a long drive.
If this one's closed or packed
Splash pads close for maintenance, run short seasons and fill up on hot weekends. There are 3 other pads within 5 miles and 46 within 15. These are the ones worth the drive — ranked by shade, toilets and cost first, then by how close they are: