In honor of the National Park Service’s 100th birthday, the agency is giving a gift of its own: Free admission.
Thursday marks a century since Woodrow Wilson signed into law the act creating the agency, the Los Angeles Times reports.
From Thursday to Sunday (Aug. 25 through 28), more than 400 parks will be free and open to the public.
There are also events taking place at certain parks in celebration of the milestone. Check out the Park Service’s centennial website to find events near you.
The Los Angeles Times notes that in a separate Washington, D.C. event, more than a thousand people are expected to visit Washington Monument on Thursday morning. There, they will form a Centennial Living Arrowhead -- symbolic of national parks -- using brown, green and white umbrellas.
The Park Service notes on its website that admission is free for a total of 16 days in 2016, though a few of those opportunities have since passed:
• January 18: Martin Luther King Jr. Day
• April 16 through 24: National Park Week
• August 25 through 28: National Park Service Birthday
• September 24: National Public Lands Day
• November 11: Veterans Day
