Is there a water park?

At Six Flags? No, but across I30 is Six Flags Hurricane Harbor, which is a huge water park.

There is a tottal of 5 waterslides in the park for six flags across i30 is hurricane harbor wich is a water park full of slides 😎

Not on site. But there is one across the highway

Water rides but Huricane Harbor is close by . If you buy a pass at six flags you can also buy a combined pass for hurricane Harbor