Kings Island is the largest amusement park and water park in the Midwest. And for good reason. Start with the thrill rides. The 5,282-foot, 80-mph Diamondback roller coaster. The Beast that travels across a 35-acre site at 65 mph. WindSeeker, which takes you 301 feet above the park for an unparalleled swing ride. Then there’s the Vortex, where you go through two vertical loops, one corkscrew, one boomerang turn and a 360-degree helix. Those alone are probably enough to make us the largest amusement park in the Midwest. Then there’s the kid-centric fun like Planet Snoopy. There’s also Dinosaurs Alive!– 60 life-sized dinos spread across seven acres of Jurassic thrills. Then there’s what completes our being the largest amusement park and water park in the Midwest – Soak City. Huge slides, wave pools and rushing rivers. It’s what makes us the largest amusement park and water park in the Midwest. Kings Island. Thrills Connect.