Mark your calendar: September 17, 2026 is a fee-free entrance day at national parks across the country — the next one after August’s, and it’s just over a week away.
Photo: Nick Valmores
What’s Actually Free
September 17 lands on Constitution Day, one of the National Park Service’s designated fee-free entrance days for 2026. On this specific day, entrance fees are waived at parks that normally charge them. It’s worth being precise about what that actually covers, since it’s a common point of confusion: the waiver applies to entrance fees only. Camping, lodging, tours, and reservations are separate costs and aren’t included, even on a fee-free day.
The waiver also applies to U.S. citizens and residents. International visitors still pay standard entrance fees, plus any applicable nonresident fees, on fee-free days.
Worth Remembering: Most Parks Are Already Free
Here’s the detail that gets lost in the fee-free day conversation: more than 300 of the 400-plus units in the National Park System don’t charge entrance fees at all, any day of the year. Fee-free days specifically matter for the fee-charging parks — places like Yosemite, Zion, or Grand Canyon — where entrance normally costs real money.
How to Actually Use the Day
Free entrance also means bigger crowds at the parks that normally charge to get in, so a little planning goes a long way. Arrive early, especially at popular parks. Use shuttle systems where they’re available instead of trying to find parking during peak hours. And since a Wednesday (which is what September 17 falls on in 2026) tends to spread crowds out more evenly than a weekend fee-free day would, it’s a genuinely good one to plan around if your schedule allows it.
If you’re camping that week, book your site well ahead of time regardless of the fee waiver — campground availability doesn’t loosen up just because entrance is free, and popular sites can fill up faster than usual with more people in the park that day.
The Bottom Line
September 17 is a real, no-catch opportunity to visit a fee-charging park without paying for entrance — just remember it only covers the entrance fee itself, and plan for the crowd that comes with it.
More on Free Park Days
- National Park Week 2026: Free Entrance Day and What to Expect August 22-30
- National Park Week Moved to August This Year — Here’s What’s Still Happening
Gear Reviews
Comfort-tested picks worth packing on your next trip.
Want More Like This?
Join our list for new gear guides, campsite finds, and comfort-camping tips. No spam, unsubscribe anytime.