Join us for our second annual Parks4All: Pink Full Moon Stroll at Presidio Tunnel Tops! [21+]

Join us for an affinity event for queer & trans people led by queer & trans park staff!

Share your input with us for planning at Rancho Corral de Tierra!

Share your input with us for planning at Rancho Corral de Tierra!

Share your input with us for planning at Rancho Corral de Tierra!

In this webinar, former National Park Ranger and historian John Martini will focus not just on the island’s infamous history as a federal penitentiary, which operated from 1934 to 1963, but also its lesser-known roles as a Civil War fortress, a political prison for Confederate sympathizers, and a military prison for recalcitrant U.S. Army soldiers and Native American warriors.

Just a stone’s toss from Fort Mason, join us for a special tour of the interactive exhibits of the Maritime Museum at the San Francisco National Historical Park. 

Help with vegetation management and site improvements at throughout this historic Fort Mason site. 

Join us at Ring Mountain Open Space Preserve for a naturalist adventure and celebration of biodiversity!

Get ready for City Nature Challenge by joining this introductory webinar, including how to use the iNaturalist app and website for basic and more advanced tasks.