Bair Island is composed of three islands: Inner, Middle and Outer, that encompass about 3,000 acres of former salt ponds. Approximately 2000 acres are within the Bair Island Ecological Reserve on the Middle and Outer islands and are being restored to tidal marshes. Powered and non-powered boats are allowed in this area of the bay. There are over 30 miles of sloughs that are accessible by kayak and row boat and during high tide by motor boat. The area is home to many native species, endangered and protected species of birds, mammals, fish and plants. It is an important stop for birds on the Pacific Flyway.
Bair Island Ecological Reserve (Redwood City)