Make room for a stamp.
Official sources checked .
Hulls Cove Visitor Center
The official list includes Acadia's Bar Harbor, Maine cancellation here, along with several other themed stamps. Check the visitor center's seasonal schedule before your trip.
Read the official NPS stamp informationSieur de Monts Nature Center
NPS lists a location-specific Sieur de Monts Nature Center stamp. Plan this as a seasonal stop and verify opening hours before heading over.
Read the official NPS stamp informationBar Harbor Chamber of Commerce
For winter visits, NPS lists a Bar Harbor, ME cancellation at the chamber of commerce. Check its current visitor-service hours before stopping in.
Read the official NPS stamp informationA curated starting point for your visit. Other stamp locations may be available in the park.
Check before you go.
NPS says most listed stamp locations are seasonal, generally May through October. Check current opening hours; the Bar Harbor Chamber of Commerce is specifically listed as a winter stamp location.
Current seasonal opening datesWhat the labels mean
Stamp listed by NPS The linked official source specifically mentions passport stamping at that stop.
Ask about stamps NPS confirms the visitor center, but the linked page does not confirm its current stamps. Ask staff before making a special trip.
Check current opening hours for every stop. An official stamp listing does not guarantee a facility or stamp station will be available on the day you arrive.
A few stamp questions.
What is a national park passport stamp?
A cancellation stamp is an ink impression that records the park and your visit date. Collectors add these to a passport book as a keepsake of their travels.
Are the ink stamps free?
The cancellation stamps are free. A passport book is a separate purchase, and normal park admission or other visit costs may still apply.
Where should I look for a stamp?
Start with the park's official stamp information or ask a ranger. Some parks have several stamping locations, and seasonal facilities may have limited hours. The stops below are a starting point, not a complete list.
What if I forgot my passport book?
Bring a small piece of paper to collect the ink impression and add it to your book later. Some parks also publish printable stamps; check the individual park's website for its options.
Official sources for this guide
NPS: Acadia passport stamps NPS: Current seasonal opening datesChecked November 9, 2026. For the latest conditions and operating details, follow the official park links above.