Bus service from Boston to Bangor is available year-round via Concord Trailways and Vermont Transit. Vermont Transit operates between Bangor and Bar Harbor during the summer months.
From June 23 to early October, fare-free Island Explorer buses operate throughout Mount Desert Island. The Island Explorer links park destinations to neighboring villages, motels, and campgrounds, as well as the Hancock County-Bar Harbor Airport. For more information, visit Getting Around.