Water Country USA, touted as the Mid-Atlantic’s largest outdoor water park (and the largest water park in Virginia), is located in York County, Virginia, near Williamsburg (176 Water Country Pkwy.). The water park offers live entertainment, shops and restaurants, water rides, and other family attractions. The park turns 40 years old this summer and is a popular destination for many nearby, as it’s approximately 150 miles south of D.C. and about 2.5 hours away.