The Twisted Volcano: Sibley Volcanic Regional Preserve

Sibley Volcanic Regional Preserve is located in the Berkley Hills in the East Bay region of the San Francisco Bay. It’s a large expanse, with a multitude of backpacking and hiking trails crisscrossing 928 acres. Did I mention that the park is dog-friendly? The trails wind through oak forests, across ridgelines, and past interesting rock formations.