235 acres of slides, rides, shows, and attractions. Oceans of Fun joined with Worlds of Fun, is a one-stop-shop for an all-day adventure. For one ticket price, you get access to the water park and theme park, so you can get your thrills from the slides or the roller coasters in the same day. It just got a major expansion in 2013, making it the biggest and baddest water park in Kansas City. If you are lucky enough to visit during Halloween, they put on the biggest event in the Midwest.