San Francisco Bay Area National Parks encompass a staggering diversity of ecosystems. Situated in one of the most biologically rich areas in the world, the parks include open ocean and rocky intertidal zones, brackish estuaries and wetlands, and freshwater streams and ponds. On land, habitats include everything from sandy beaches and dunes to grasslands, scrub, and forests, to caves and high rocky spires.

Last updated: May 11, 2018