Golden Gate Ferry service operates daily with a Larkspur - San Francisco schedule tailored to both commuters and visitors. Giants fan? You can take the Ferry right to a game. Looking for a day adventure in San Francisco, or bringing visitors to Marin? The Ferry is the best way to beat traffic and see the Bay from its best vantage point - the water.
Larkspur - San Francisco Ferry schedule is here.
Map of the Larkspur Ferry Terminal and transit (bus, bike) options here.