Get ready to bounce, slide and splash your way through the largest inflatable aqua park in Southern California at Castaic Lake this Summer.
California Bounce Systems is bringing back its popular Cali Splash Park to Castaic Lake for the 2026 summer season, transforming part of the lake into a massive floating playground packed with obstacles, slides and inflatable challenges.
Floating right on the water, the giant aqua park features more than 45 inflatable attractions, including towering slides, climbing walls, bounce pads, wiggle bridges and obstacle courses designed for families, kids and groups of friends looking to cool off during the summer heat.
The floating park officially opens May 23 and runs through Sept. 7.
The park will open Memorial Day weekend from May 23–25 before switching to weekends only through June 14. Beginning June 17, the attraction will operate Wednesday through Sunday for the remainder of the summer season.
In addition to the inflatable aqua park, visitors to Castaic Lake can also enjoy the swimming beach, barbecue areas and boating rentals, making it easy to turn a quick splash session into a full lake day outdoors.
The park is open to a wide range of ages, although organizers say children must be at least 9 years old to participate on their own. Kids ages 4 through 8 may still join the fun if accompanied by an adult inside the park, with each adult allowed to supervise up to two children.
Sessions begin every two hours, and guests can choose between a two-hour session pass or a full-day pass. Season passes are also available and valid Wednesdays through Sundays with no blackout dates through Sept. 28.
Anyone under 18 years old must have a waiver signed by a parent or legal guardian before entering the attraction.
Whether visitors are racing across inflatable bridges, flying down giant slides or trying to stay balanced above the water, organizers say the massive floating attraction is designed to deliver a full day of summer fun at Southern California’s largest inflatable aqua park.
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