Sutro Project / Mt Tamalpais
Sprawled between Stinson Beach and Mill Valley, Mt Tamalpais (translating literally as "Tamale Country") offers phenomenal views and great hikes! No tamales, unfortunately. Hiking and Biking - road and mountain - are the preferred modes of transport (the "Crookedest Railroad in the World" ceased operation in 1930).
Muir Woods and its spectacular coastal redwoods are very popular, ride a bike or arrive early to find parking.
The bisecting Dipsea trail hosts the brutal 7.4 mile Dipsea Race every June - the oldest trail race in the country. Bay to Breakers, is only 5 years younger... but that's a different story :)
Website: http://www.mttam.net/
Wikipedia: http://en.wikipedia.org/wiki/Mount_Tamalpais
