Hilton Head County Park Splash Park
✓ Last confirmed for the 2025 season
Where: 1605 Hilton Head Road, El Cajon, California
When: May 1 - September 30
Hours: 10 a.m.-5 p.m. daily; closed the last Wednesday of each month for water testing
Cost: $3
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The centerpiece of this 10-acre county park in the Rancho San Diego area is a pirate-themed splash park that costs $3 per day, with a $30 season pass or a $75 three-person family pack available. There is no lifeguard, children under 14 need adult supervision, and non-potty-trained kids must wear swim diapers; the park also offers a playground, sports field, basketball court and shaded picnic areas.