Do you ever wish we could look back in time? We can, by studying the cosmic microwave background (CMB), which reveals the fiery early universe when it was only 0.003% of its present age. This talk will show how studying the CMB allows us to learn about the origin, composition, and ultimate fate of the universe.

Don your costumes and join Crissy Field Center’s Community Programs team for an easy, family-friendly interpretive walk around the Crissy Field Marsh.

Hear stories of prisoners, correctional officers, children, and other residents of Alcatraz who discovered or demonstrated love in the hardest of places.

Enjoy a sunrise stroll with longtime Muir Woods volunteer Nelson Stubbins, who will lead this popular Muir Woods walk just for members.

Join us for a walk through the Presidio with expert David Harelson to learn about the Presidio’s wildlife management strategies.

Become a steward of the Mt Tamalpais Watershed! Join our work day and naturalist walk.

Join us for a walk through the Presidio with expert David Harelson to learn about the Presidio’s wildlife management strategies.

Join us for a walk through the Presidio with expert David Harelson to learn about the Presidio’s wildlife management strategies.

Join us for a walk through the Presidio with expert David Harelson to learn about the Presidio’s wildlife management strategies.

Experience the majesty of the redwoods while lending your hand at Muir Woods!