Celebrate Constitution Day with free admission to participating U.S. national parks today, September 17, 2026.
As part of the National Park Service’s 2026 fee-free entrance days, U.S. citizens and U.S. residents can visit national parks that normally charge an entrance fee without paying admission. Please note that other fees, including camping, timed-entry reservations, tours, and parking, may still apply at some locations.
National Park Free Entrance Day Details
- Date: Today, September 17, 2026
- Occasion: Constitution Day
- Offer: Free entrance to participating national parks
- Who: U.S. citizens and U.S. residents
- Cost: Free admission to parks that normally charge an entrance fee
Before visiting, check your destination park’s website to see if reservations or timed-entry passes are required.
If you’ve been thinking about exploring a national park, today is the perfect opportunity to enjoy the outdoors and save on entrance fees.
