Just a short hop offshore of the industrial Richmond waterfront, this island supports over 18 species of nesting birds as well as rare native coastal grassland.
Ohlone indians occupied this island for thousands of years. European settlers and their successors used it for sheep and cattle grazing, oyster-raising, and quarrying and a hunting club. Despite these uses some of the native vegetation remains. During the spring, wildflowers are abundant; in the summer the beach is crowded with noisy nesting caspian terns.