Bair Island Ecological Reserve

The area is home to many native species, endangered and protected species of birds, mammals, fish and plants.   It hosts over 280 species of shorebirds and waterfowl as well as the endangered harbor seals and salt marsh harvest mouse.  The reserve covers 30,000 acres and a variety of habitats including open bay, salt pond, salt marsh, mudflat, upland and vernal pool.  There is a three mile easy, flat, fully exposed dirt loop hike that is open to hikers, bicycles and equestrians.   There is a medium sized dirt parking lot that has room for about 15 vehicles. There are no restrooms or other facilities.


Dogs must be leashed and must stay on dirt trail as the area is a protected ecological reserve. 

Operating Hours

Sunrise to sunset.

Disabled Access



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500 E Bayshore Rd

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From US 101 in San Mateo County, exit Whipple Road. Drive east on Whipple, and where the road curves sharply right (just past the 101 northbound entrance/exit ramps), carefully pull off into the small dirt lot on the left.

Contact Info

Phone: 707-944-5500