When owners Bob and Billye Henry added a replica German guard tower with four waterslides to their riverfront resort near San Antonio in 1979, they started what would become one of America’s most well-known water park chains. The first of five indoor and outdoor water park resorts, New Braunfels’ Schlitterbahn features 51 German-themed attractions, including the Kinderhaven wading pool, a castle with eight tube chutes, and the thrilling Master Blaster uphill water coaster.