Raging Waters San Dimas is the largest water park in the western United States in terms of acreage and number of attractions. It is located in the city of San Dimas, approximately 30 minutes from Los Angeles.

The park has 36 slides and attractions, including wave surfing and an eight-lane water slide for racing and a lazy river. Top attractions include:
• Aqua Rocket, a coaster-style slide that uses magnetic propulsion to propel a raft;
• Amazon Adventure, a 400 meter-long, 90 centimeter-deep tropical river that runs through a section of the park.
• DropOut, a seven-story water slide, one of the tallest in the country. Riders reach speeds close to 65 kilometers per hour.