What hotels in or near Texas has slides and water parks on site?
Found Lakeway Resort and Hyatt Lost Pines near Austin, Texas. Does Any others?
The best water park in the entire United States (which has won many awards) is Schlitterbahn. They park in New Braunfels, Galveston and South Padre, but the original park in New Braunfels, hands down the best! These are hotels that are owned, although I've never been there. If you are looking for the best water park experience of your life, let me recommend go there. There are many hotels in New Braunfels, which not too far.
Gaylord SummerFest 2009