Celebrate the National Park Service's 98th Birthday with free entrance to all parks!

The National Park Service celebrates its 98th birthday on Monday, August 25th, and to celebrate all entrance fees for all 401 national park units will be waived. Take advantage of American's most amazing landscape with a free pass.

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If you didn't make it to Acadia or any other National Park on Aug. 25 and missed the free entrance in honor of the Park Service's 98th birthday, don't worry - there's another free entry day on Sept. 27.