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.

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.

Winter abounds with watery wonders! Learn about an important home for creatures that especially thrive in this season, and which are also indicators of the habitat's health, with One Tam scientists who study them.

Join One Tam at Roy’s Redwoods for a winter naturalist adventure!

Celebrate the legacy of Martin Luther King Jr. with the San Francisco Habitat Stewards. Become a habitat steward and help restore unique San Francisco coastal habitat.

Learn to grow and care for native plants while helping to preserve and restore your national park.