Muir Beach is located in southern Marin County. From 101, take the Mill Valley/Stinson Beach exit. At the second stop light (gas station on the corner), turn left onto CA-1. Stay on Highway 1 and follow signs to Stinson Beach. Turn west at the Pelican Inn and drive down the road to the parking lot. The road is steep and winding; vehicles over 35 feet long are not advised.