The beach itself is small -- a crescent of coarse sand where Redwood Creek meets the Pacific. The creek, which flows through the coastal redwood forests above, creates a lagoon behind the beach that supports a diverse bird population. Harbor seals occasionally haul out on the rocks at the north end. The surf is not gentle -- Pacific swells arrive unimpeded from thousands of miles of open ocean, making swimming risky but creating conditions that attract surfers willing to brave cold water and strong currents.

Muir Beach sits at a geographic crossroads between the Marin Headlands to the south and Mount Tamalpais to the north. Trails connect the beach to both areas, making it a waypoint on the extensive trail network that crisscrosses western Marin County. Green Gulch Farm Zen Center occupies the valley just inland from the beach. The Pelican Inn, an English-style pub, sits near the beach entrance, offering the surreal experience of drinking a pint of bitter within sight of the Pacific.

The community of Muir Beach is small enough that residents know each other, isolated enough that it feels remote despite being only thirty minutes from San Francisco. The combination of national parkland protection, a single access road, and the general impracticality of building on steep coastal terrain has preserved the area in a way that no zoning ordinance could match. Muir Beach exists because the landscape around it is too valuable, too steep, and too wild to develop -- and because the people who live there prefer it that way.