Join Marin County Parks and One Tam in maintaining the Via Recodo trail. In preparation for the winter rains the trail is going to require drainage work and tread work to make it safe and durable. Our project will revolve mainly around out slopping the tread and fine tuning the switchbacks.

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

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

Learn about the history of pets on Alcatraz, including the "Puppy Steps," and in other prisons today.

Can comics help us better understand the U.S. prison system? Come find out on Alcatraz Island on October 17!

Join us for MLK Weekend of Service and help "floss" the deck at Muir Woods! 

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

Join us for a walk through the Presidio with Wildlife Ecologist Phoebe Parker-Shames to learn about the Presidio’s wildlife management strategies.

Learn why Alcatraz closed as a federal prison and what happened net for those who lived and worked here.

Earth Day is celebrated on Aprill 22 each year, but we'll be honoring Earth Day all weekend long!