Marin County Parks and Open Space Department

Work will begin on the Agate Beach Access and Discovery Trail on August 30, 2017. Construction is expected to take 3 to 4 weeks. The trail will be closed Monday through Thursday, 7 a.m. to 5:30 p.m. while improvements are taking place. Trail will be open between 5:30 p.m. and 7 a.m. and throughout the weekends. The project includes new path surfacing and box steps to improve access to the beach. Path improvements will improve drainage to help keep creek water clean, protecting run off into Duxbury Reef, an Area of Special Biological Significance. This project is the first of seven Access and Discovery trail improvement projects identified in the Marin County Parks Inclusive Access Plan. The Access and Discovery Trail system is an experience-based network of trails that meet technical design standards for accessible recreational trails.

Agate Beach DetailThis 6.6 acre beach, near the town of Bolinas, provides access to almost two miles of ocean shoreline at low tide. Together with adjacent Duxbury Reef, Agate Beach offers amazing opportunities to explore tide pools filled with marine life, general beach recreation, wildflower viewing, bird watching, and on clear days, incredible views to the Farallon Islands and beyond.

Agate Beach is part of the Duxbury Reef State Marine Reserve, which includes Federal and State jurisdictions and signifies its status as a sensitive and highly protected resource area. Marin County Parks jurisdiction includes the upland area. When visiting Agate Beach, please remember that collection of rocks, shells, and any other marine life is prohibited. Collection of red abalone and fishing from shore for fin fish is allowed in accordance with California Fish and Game Code and with the correct California Department of Fish and Wildlife permit.


From Hwy 101 in Larkspur, take the Sir Francis Drake Blvd exit west to Olema, turn left at Hwy 1/Shoreline Hwy, turn left at Olema Bolinas Rd, turn right at Mesa Rd, turn left at Overlook Rd, and turn right at Elm Rd. A large parking lot is at the end of Elm Rd on the left.

Visit,,, or dial 511 to find out about alternative transportation and public transit options from your location.

  • Dogs on Leash Activity Icon
  • Picnicking Activity Icon
  • Swimming Activity Icon
  • Walking Activity Icon


Benches, Parking, Restroom


Daylight Hours

Google Directions Button