Englishman Bay: Roque Bluffs to Halifax Island Professional Review and Guide
"Halifax is a beautiful outer island that is part of the Petit Manan National Wildlife Refuge and managed by the U.S. Fish and Wildlife Service. It is open to the public for careful day use and for camping by prior permission. The island has two sections joined by a narrow neck; it’s best to land on the southern peninsula.
The interior of the larger northeast section of the island is closed to visitors due to the fragile plants growing in upraised bogs, a unique feature in New England. For hiking, stay on the rocky perimeter. Wildlife includes harbor seals, bald eagles, black guillemots, great blue herons, common loons, gulls, terns, cormorants, and flocks of female eiders with their young in summer."