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Aerial View of Alcatraz
Event

Membership Webinar: Alcatraz History - 250 Years on The Rock

Online/Virtual
In this webinar, former National Park Ranger and historian John Martini will focus not just on the island’s infamous history as a federal penitentiary, which operated from 1934 to 1963, but also its lesser-known roles as a Civil War fortress, a political prison for Confederate sympathizers, and a military prison for recalcitrant U.S. Army soldiers and Native American warriors.
San Francisco Maritime Museum
Event

Membership Event: Maritime Museum at Aquatic Park Tour

Just a stone’s toss from Fort Mason, join us for a special tour of the interactive exhibits of the Maritime Museum at the San Francisco National Historical Park.
Volunteers at Fort Mason
Events

Golden Gate Historic Landscaping and Maintenance - Fort Mason

Fort Mason Flagpole
Help with vegetation management and site improvements at throughout this historic Fort Mason site.
A volunteer with dark pants kneels at the left of the screen to take a picture with a phone of light pink flowers against a rocky background.
Events

City Nature Challenge: Bugs & Blossoms Bioblitz

Join us at Ring Mountain Open Space Preserve for a naturalist adventure and celebration of biodiversity!
A volunteer with dark pants kneels at the left of the screen to take a picture with a phone of light pink flowers against a rocky background.
Events

Get Ready for City Nature Challenge! (Webinar)

Online/Virtual
Get ready for City Nature Challenge by joining this introductory webinar, including how to use the iNaturalist app and website for basic and more advanced tasks.
A group collects seed in a grassland. A volunteer holds a tray of seeds.
Volunteer

Marin Headlands Nursery

Learn to grow and care for native plants while helping to preserve and restore your national park.
Two women carrying bug nets in a grassy field inspect specimen vials
Event

Tamalpais Bee Lab - Community Science Event

Become a community scientist and help us understand our local bee communities!
Two women carrying bug nets in a grassy field inspect specimen vials
Event

Tamalpais Bee Lab - Community Science Event

Become a community scientist and help us understand our local bee communities!
Two women carrying bug nets in a grassy field inspect specimen vials
Event

Tamalpais Bee Lab - Community Science Event

Become a community scientist and help us understand our local bee communities!
Two women carrying bug nets in a grassy field inspect specimen vials
Event

Tamalpais Bee Lab - Community Science Event

Become a community scientist and help us understand our local bee communities!