Raging Waters features three California water parks, but its most impressive is Raging Waters Los Angeles. Situated less than 30 miles east of downtown Los Angeles, this water park is the state’s largest. It’s home to a FlowRider surf simulator, a seven-story drop slide and Aqua Rocket, a four-person hydromagnetic water coaster, among other attractions. If you’d rather chill during your visit, check out the quarter-mile-long lazy river.