North of San Francisco and west of Olema, the Estero Trail is a mountain bike route leading to Sunset Beach (5 miles) and Drakes Head (8.8 miles). The route combines rolling singletrack and wider paths. Along the way, there are broad vistas over Drakes Estero. Watch out for the side cattle tracks that can lead you astray.
Overall, Estero Trail is the 123rd most popular mountain bike trail of all 132 mountain biking rides in California.