Updated for National Park Free Days 2016
National parks offer free days several times a year so you and your family can get out and enjoy a national park for free. Over 100 national parks participate in the national parks free days.
Not only do you get into the national park for free on these dates, often times there are special events going on as well.
If you or your family member is in the military you can get a free annual national park pass.
Fourth graders can also get a free national park pass.