Hawaiian Falls Garland was the first of the seven Texas water parks built and operated by Hawaiian Falls, and the water park continues to grow year after year. Whether floating down the Kona Kooler Lazy River or exploring the Keiki Kove fortress with its rope ladders, geysers, and thousand-gallon dump bucket, there's something for every family member to enjoy at our 12-acre Garland Water Park. Round up the kids and head to the one of the best waterparks in Texas for a great day of family fun.