Acadia National Park · Maine
Overview Duck Harbor campsites are reservable starting on April 1st at 10:00am ET. Duck Harbor Campground is located on Isle au Haut, a rugged island off the coast of Stonington, Maine. Remote and inaccessible to automobiles, Isle au Haut is linked to the mainland by mailboat.
Sites at Duck Harbor Campground are reserved through Recreation.gov. Sites here can be reserved in advance through the official system, and they are claimed fast — cancellations then trickle back all season, unannounced, at any hour of the day or night.
| Total sites | 5 |
|---|---|
| Site types | Shelter |
| Location | Bar Harbor, ME |
| Book through | Recreation.gov |
| Official listing | Recreation.gov |
Because sites are booked months ahead, a steady share of reservations get cancelled as trips fall through. Each cancellation instantly returns that site and those nights to the official calendar — first-come, first-served, no waitlist, no announcement. Refreshing the booking page yourself, every few minutes for weeks, works in theory. In practice, the people who get these sites are the ones who hear about the opening first.
itOpened scans the Recreation.gov calendar for Duck Harbor Campground around the clock. When a site matching your dates and your vehicle opens, you get a text with a direct link to it. You book it yourself, in your own account, at the normal price. We never book, hold, or resell — your fee pays for monitoring, and openings are first-come, so speed is the whole game.
| Blackwoods Campground | Cancellation alerts available |
|---|---|
| Seawall Campground | Cancellation alerts available |
| Schoodic Woods Campground | Cancellation alerts available |
Page data refreshed 2026-10-29. Site facts come from the official directory listing for Duck Harbor Campground; cancellation statistics come from our own scanning logs.