In collaboration with the Cal Academy of Sciences, we invite you to join us on Tuesday, May 9th for the Legacy of Hope: Nurturing Scientific Curiosity, featuring the Academy’s Dr. Rebecca Johnson and the Presidio Trust's Damien Raffa.

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

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

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

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Learn about how sea level rise is impacting Bothin Marsh and what One Tam is doing to help.

Join the nation's largest celebration of trails.