The park features the promontory of Point Pinole, located where the East Bay shoreline turns from running south towards Berkeley and Oakland to running eastwards, inland. Geologically, it is a result of movement on the Hayward Fault which runs along its western edge, creating a low scarp. It offers superb views across the bay in all directions, towards San Francisco to the southwest, Mount Tamalpais and the Marin Headlands to the northwest, inland across San Pablo Bay to the north and east, and Mt. Diablo inland to the southeast. Fresh and ocean waters mix at this point, so the marine life is rich; a leisure pier has been built at the end of promontory, replacing a former jetty used by the factories, and is a popular location for angling.