Permits & reservations
Acadia National Park: Permits & Reservations
Cadillac Summit Road reservation. Here is what you need, how to get it, and when to book.
The short version: Vehicle reservations are required to drive Cadillac Summit Road, typically late May through mid-October.
How to get it
Book on Recreation.gov. Daytime and sunrise/sunset slots are separate.
The rest of the park, including Park Loop Road, needs no reservation.
Check Recreation.gov Best time to visit Acadia2-day itinerary
Verify before you go. Permit systems change year to year. Confirm current requirements on nps.gov.
Permit questions
Do I need a reservation to visit Acadia National Park?
Vehicle reservations are required to drive Cadillac Summit Road, typically late May through mid-October. Book on Recreation.gov. Daytime and sunrise/sunset slots are separate.
How far ahead should I book Acadia National Park permits?
As early as the booking window allows. Popular dates sell out within minutes of release, and the next-day lotteries are competitive in peak season.
Where do I check current Acadia permit rules?
On the park's official site before you travel. Rules change year to year; this page is a planning guide, not the official source.