Bair Island is a marsh area in Redwood City, California covering 3,000 acres (1,200 ha), and includes three islands: Inner, Middle and Outer islands.Bair Island is part of the larger Don Edwards San Francisco Bay National Wildlife Refuge.The California Department of Fish and Game's Bair Island Ecological Reserve consists of 1,985 acres (803 ha) on the Middle and Outer islands, although the entire island group is managed by the Refuge.