End of July is HOT!!! But there are water rides and a great kids water area!! We live 35 minutes from there (in Arkansas) and get season passes every year!! There are a lot of things for adults, even older adults, as well as the kids!! The only thing DH and I refuse to do again is the Giant Barn Swing, as it SCARES US TO DEATH!! But in the heat, the Lost River is great, and so is Amercan Plunge!! And when the grown ups get tired, we take them to the kids area, cant think of it now, where they have water guns (cannons almost!) and even dh loves it in there!! They also have water balloon toss games, that are more like a, well, lets just say its who can soak the other best!! They also, for little kids, have the little fountains that come out of the ground to play in and keep them cool!!! If you need to know anything pm me, as its one of my fave places (after WDW!!)