All facilities in the visitor center and picnic areas are wheelchair accessible. The sand dunes themselves are accessible to wheelchairs to a limited degree. The Interdune Boardwalk is a 1/3 mile (round-trip)wheelchair-accessible trail through an interdune area and to the top of a dune.
Maine ocean islands provide the only nesting sites for Atlantic puffins in the United States. Eastern Egg Rock in the midcoast region, Seal Island and Matinicus Rock at the mouth of Penobscot Bay, and Machias Seal Island and Petit Manan Island off the downeast coast provide habitat for more than 4,000 puffins each summer.