of refuge is accessible by small boat, though access is controlled by the U.S. Fish and Wildlife Service. Tours of the island (and even dinner cruises) are available. They include the privately owned, rebuilt Charity Island Lightlightkeeper's house and a passing view of Gravelly Shoal Light. They are available from a ferry company in Au Gres, Michigan on the mainland, south of Tawas. References External links Charity Island Webpage Michigan Islands National Wildlife Refuge Charity Island Lighthouse - United States Lighthouses National Wildlife Refuges in Michigan Protected areas of Arenac County, Michigan Islands of Lake Huron in Michigan Islands of Arenac County, Michigan Saginaw Bay