Marin County's Best Beaches

Where to walk the dog, discover hermit crabs, and try stand-up paddleboarding.

A child plays on the rocks at Stinson Beach in Marin County, California photo
Marin County is home to many picturesque beaches.
alexroch / Shutterstock

With the Pacific Ocean to the west, Tomales Bay carving the coastline, and San Francisco Bay to the east, Marin County offers countless ways to spend a day on the shore. Whether you want to take the dog or the kids, hunt for sea anemone or cast a line, here are some favorite destinations.

Trail view of Agate Beach Park, picture

The view from the bluff-top trail at Agate Beach Park reveals a picturesque coastal setting.

Courtesy Marin County Parks

For Tide-pooling

On the western edge of Bolinas, Agate Beach Park has nearly seven acres of pebble-strewn shoreline and easy access to adjacent algae-covered tide pools. At low tide, anemones and hermit crabs thrive amidst bright green sea lettuce, and harbor seals and black oystercatchers make a splash off shore. If the surf is high, take the bluff-top trail from the parking lot to watch waves crashing on Duxbury Reef and—on a clear day—see views that sweep to the Farallon Islands.

For Family Fun

In contrast to the big-wave drama of much of the Pacific coastline, Heart’s Desire Beach is a sheltered stretch of sand on Tomales Bay’s western shore. Boasting high temps and calm water, the area entices families and picnickers who grill oysters and toss Frisbees on the surrounding grass.

Dogs running at Dillon Beach, picture

Dillon Beach allows dogs off leash (as long as they're under an owner's control).

Erin Klenow

For Dogs

One of few leash-free zones on the northern coast, the one-mile, white sand expanse of Dillon Beach might be California’s most beautiful dog run. Backed by tall grassy dunes, the southern end of the beach faces craggy golden Tomales Point, which marks the mouth of the bay of the same name. Four miles inland, dog-friendly Tomales Bakery, in the town of Tomales, merits a stop for a pre- or post-beach raisin rosemary focaccia (weekends only).


For Water Sports

Perhaps the county’s most popular surf spot, Bolinas Beach and its gentle break are also great for stand-up paddleboarders and boogie boarders of all skill levels. Summer’s sunnier days draw crowds, so be prepared to park and walk to the Brighton Avenue entrance alongside locals with surfboards strapped to their beach cruisers.

The pier at Paradise Beach Park, picture

The pier at Paradise Beach Park lures anglers looking for halibut, bass, and perch.

Courtesy Marin County Parks

For Fishing

On a secluded road that winds to the eastern side of the Tiburon Peninsula, Paradise Beach Park’s fishing pier juts into the San Francisco Bay, looking east to the Richmond−San Rafael Bridge. Anglers here cast for halibut, sturgeon, striped bass, and perch. Visitors will also find a short trail to a tiny beach and several well-kept picnic areas with Bay views.

This article was first published in April 2016 and last updated in February 2019.