National Park Week offers free admission to all 397 of your national parks from April 20th to April 28, 2013.
Enjoy free entrance to U.S. national parks during National Park Week to save money on outdoor fun for your entire family.
During National Park Week from April 20th to April 28th, all national parks are offering free admission all week long.
A number of park partners and concessioners are also providing discounts to make your visit even more affordable.
Check out these other Free National Park Days for more free admission days at U.S. national parks throughout the rest of 2013.
Enjoy National Park Week to get free admission for your entire family at your national parks.