222-acre Charity Island, the largest island in Saginaw Bay, is part of the "Michigan Islands National Wildlife Refuge". Its isolated beaches and unique hardwood forest provide excellent habitat for rare and protected plants, animals and songbirds. There is also an historic lighthouse on the island that is under private ownership (see Charity Island Dinner Cruises). The island is located approximately 10 miles off-shore and easily accessible from the AuGres Boat Launch or a privately run ferry service. The portion of the island that is the Wildlife Refuge is currently closed to the public.