Six Flags Hurricane Harbor Concord is Northern California’s largest waterpark, spanning 30 acres with over 35 attractions. Featuring thrilling water slides, the largest wave pool in the region, and the area’s longest lazy river, it offers a variety of family-friendly activities. Hurricane Harbor continues to add park enhancements, like the new Splashwater Island, a multi-level water play structure with over 100 interactive elements. Highlights include Break Point Plunge, a free-fall slide, and the six-story Tornado slide, providing excitement for all ages.