The Island Waterpark
✓ Last confirmed for the 2026 season
Where: 6099 W. Barstow Ave., Fresno, California
Season: Late May through early September
Hours: Varies by date; check park calendar
Cost: $39.99
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West Fresno's full-scale waterpark stacks eleven slides alongside a lazy river, wave pool, and a zero-depth children's play zone, plus After Dark night-slide sessions in peak summer. Cabana and picnic rentals cater to all-day groups.
When to go. Peak summer highs in Fresno average 100°F. Go before 11am or after 5pm — midday is genuinely unsafe for small children, and the concrete around a pad runs hotter than the air.
How long it's open. Roughly 21 weeks a year, from May 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 is 1 other pad within 5 miles and 11 within 15. These are the ones worth the drive — ranked by shade, toilets and cost first, then by how close they are: