Adults

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.

Enjoy a Saturday morning hike, guided by Friends of Mt. Tam volunteers.

Help study California's only freshwater turtle.

A total solar eclipse is one of nature‰ЫЄs most magnificent spectacles. On August 21, 2017, for the first time in 38 years, the very narrow path of a total solar eclipse falls across the continental US. Come learn about total solar eclipses and how to view this one!

Enjoy a Saturday morning hike, guided by Friends of Mt. Tam volunteers.

Join local hydrologist Peter Hartsough and MMWD staff Mike Swezy to learn more about how the hydrology of West Peak influences the watersheds it feeds, and how geology and climate in turn influence the mountain's hydrology.

Walk back to the time of Juana Briones, and explore the untold stories of African-Latinx in California's colonial period.

Bring your family out for a free community celebration at the new Presidio Visitor Center, a gateway for incredible park adventures.

Come experience history first hand at a 160 year old Civil War Era fort!

Come join us at Muir Woods to learn about bat ecology! We will have a brief discussion about bats and demonstrate how they are safely caught as part of an exciting bat monitoring and inventorying program.