23.) The Wisconsin Dells has the world’s largest concentration of water parks all in one area. There are eight indoor parks and there are three outdoor parks. There are more than 200 water slides and 16 million gallons of water.

23.) The Wisconsin Dells has the world’s largest concentration of water parks all in one area. There are eight indoor parks and there are three outdoor parks. There are more than 200 water slides and 16 million gallons of water.
