From Boston take I-95 north to Augusta, Maine, then Route 3 east to Ellsworth, and on to Mount Desert Island. For an alternate route, continue on I-95 north to Bangor, Maine, then take Route 1A east to Ellsworth. In Ellsworth, take Route 3 to Mount Desert Island.
Direct flights from Boston's Logan Airport land at the Hancock County Airport, 10 miles from Acadia National Park. National airlines serve the Bangor International Airport, about one hour from the park. Car rentals are available at both airports.
By Public Transportation
Bus service from Boston to Bangor is available year-round via Concord Coach Lines and Greyhound.
During the summer months the Park Loop Road and parking lots at carriage road entrances can be quite crowded. Parking is permitted only in designated (posted) areas, parking lots, and established roadside pullouts. To avoid the crowds and parking issues, you can ride fare-free Island Explorer buses to many park destinations.