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Trails Forever 2025 Adventure Outings

We are pleased to offer these Adventure Outings throughout the GGNRA.

Parks Conservancy staff members sit on a fence in front of Lake Lagunitas, smiling at the camera. The title "SPANISH" is in the upper right.

Come with us: A Bilingual Forest Walk at Lake Lagunitas

Walk and learn under the trees

Habitat Restoration Team

Sun, Sep 14, 2025, 9:30am - 2:30pm

Stinson Gulch

Help restore and protect critical natural areas from the Marin Headlands to Bolinas Ridge.

Registration Required

National Park Service Ranger Todd Hisaichi at Muir Woods National Monument.

Biodiversity Day 30 Species Challenge - Ranger Guided Hike

Sat, Sep 13, 2025, 9:00am - 1:00pm

Mountain Home parking lot

To celebrate California Biodiversity Day, Muir Woods AND Mount Tamalpais rangers invite you to explore a small part of the amazing biodiversity that our ecosystems have to offer.

Learn More

San Mateo Park Stewardship intern Samuel Peña.

Introducing Samuel Peña: Our new San Mateo Park Stewardship Intern!

Hello! My name is Samuel Peña and I am super thrilled to be joining the Park Stewardship San Mateo team.

A colorful San Francisco garter snake in the grass with red, black, and turquoise stripes.

Colorful, endangered San Francisco garter snakes are getting a big boost in national parks

One of the San Francisco Bay Area’s rarest species is getting a new lease on life through a special headstart program, while the Parks Conservancy and our partners work to improve habitat so this endangered species can thrive.