Celebrate National Park Service’s 100th birthday with free admission to parks

To celebrate its 100th birthday, the National Park Service will offer free admission to all national parks from August 25 – 28. Many parks will feature special activities and ranger-led walks. Visitors are encouraged to share pictures with hashtags #NPS100 and #FindYourPark.

An astronaut — Jeff Williams — shares this unusual view of the Olympic Mountains and Puget Sound from space:

Which are your favorite parks to explore? What do you like to do in our national parks?

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