Free Admission to All National Parks - Great American Outdoors Act Anniversary

All National Parks in the United States are FREE ADMISSION on the 1-Year Anniversary of the Great American Outdoors Act (Aug. 4), including Fairfax County's own Great Falls National Park. 

*Fee waiver includes entrance fees, commercial tour fees, and transportation entrance fees. Other fees such as reservation, camping, tours, concession and fees collected by third parties are not included unless stated otherwise.