Come join the San Francisco Amateur Astronomers for free public stargazing of the Moon, planets, globular clusters and more!

Join Support for Families for a family fun day at the Presidio Tunnel Tops! Learn about inclusive recreation, after school, and summer programs available in San Francisco, while exploring a brand-new accessible park.

Curious about the natural world of the Marin Headlands? This 2-mile guided hike will explore the ecosystems, animals, and geology of these rolling hills.

We’re excited to kick off a special summer series of Belonging in Nature: Queer & Trans Community Day land stewardship programs (June-September) in collaboration with four amazing artists, chefs, and land stewards!

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

To celebrate California Biodiversity Day, Muir Woods AND Mount Tamalpais rangers invite you to explore a small part of the amazing biodiversity that our ecosystems have to offer.

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