What is the largest water park in the United States?

As the nation’s largest water park, Noah's Ark in the Wisconsin Dells lives up to its title with an overwhelming assortment of water rides. With more than 50 slides, two wave pools, and a surfing simulator, Surfing Safari, Noah's Ark offers something for the whole family. Thrill-seekers head to Noah’s Ark for its extreme rides including the Scorpion’s Tail, which sends riders down a near-vertical slide into an inclined loop. Be sure to check out the Black Anaconda as well, touted as America’s most thrilling water coaster, which clips riders through the dizzying course at speeds up to 30 mph.

Source: Fodor's Travel