Help restore and maintain beautiful landscapes and historic sites in the Marin Headlands.

For our conservation efforts, we gather and analyze scientific information from Stewardship sites with the goal of maintaining healthy ecosystems. This information is used to develop plans that guide our volunteer programs and restoration efforts.

Migratory Story is an intersectional, multi-touch program that dives into the essential question, “Why do living things move?” More importantly, “What is the importance of migration?”

When: Thursday, October 27th, 2022 - Sunday, October 30th, 2022

Where: Projects throughout the GGNRA, Muir Woods, and Fort Point. See below for more details.

The GGNRA is turning 50 years old on October 27, 2022! Help us celebrate the 50th anniversary by rolling up your sleeves and giving the parks some TLC!

When: Wednesdays, 9 am–Noon; Thursdays, 1 pm–4 pm |

Where: National Park lands in San Francisco |

Help restore and preserve the natural areas of Fort Funston, Lands End, and the Presidio of San Francisco.

When: Third Sunday of each month, 9:30 am—12:30 pm

Where: Rancho Corral de Tierra, San Mateo County

Help restore and preserve the natural areas of Rancho Corral de Tierra.

When: 3rd & 5th Tuesdays, 10 am–2 pm |

Where: Tennessee Valley, Marin county |

Get your hands dirty while restoring and protecting Tennessee Valley's native plant communities.

During the autumn months, our teams of volunteer hawk counters identify and tally 19 species of birds of prey, working under the leadership of an experienced dayleader.