Timed entry and park reservations, explained

The most common way a park trip dies now isn't weather. It's showing up at a gate that wanted a reservation you don't have. Several headline parks meter entry in peak season, fee or no fee, and the ranger at the booth cannot help you.

There are three flavors:

Vehicle timed entry. You book a window to drive in at all. Arches and Glacier have run versions of this for years. Peak-summer slots can vanish months out.

Feature permits. The park is open, but the famous thing needs its own ticket. Angels Landing at Zion. Cadillac Summit Road at Acadia. Half Dome cables. This one burns people who "have a reservation" for the park and not the reason they came.

Hard-cap reservations. Small, fragile places that admit a fixed number of people per day, booked like a campsite.

Nearly everything runs through recreation.gov. Make your account now, not the morning permits drop, because popular releases are gone in minutes and account setup is how you lose the first five.

Protecting a trip

Check the park's alerts and official page four to six weeks before you travel. Requirements change seasonally, and a park that didn't need reservations last year may need them now. Keep lodging refundable until entry is locked. If the window you want is sold out, most systems release a batch of next-day permits the evening before; set an alarm and be ready at the release minute. Early morning and late afternoon entries are often exempt from timed windows entirely, which is a legitimate strategy and not a loophole.

And if it's all booked? Every metered park has neighbors. Same geology, same mountains, no lottery. The activity pages on this site exist for exactly that substitution.