Docents monitor habitat conditions for and educate hikers about native foothill yellow-legged frogs. At noon we take a 3 mile round-trip hike to Little Carson Falls.

Calling all families: We invite you to join us for Park Prescription Day, a FREE celebration on Crissy Field in front of the Crissy Field Center.

Come experience the annual hawk migration first hand with the Golden Gate Raptor Observatory.

Join us for an informational meeting about the GGRO's volunteer programs. We are seeking new hawkwatchers for fall 2017; all training provided.

Join us for an informational meeting about the GGRO's volunteer programs. We are seeking new hawkwatchers for fall 2017; all training provided.

Join us for an informational meeting about the GGRO's volunteer programs. We are seeking new hawkwatchers for fall 2017; all training provided.

Join the Bay Area Climate Literacy Impact Collaborative (BayCLIC) in the next installment of our Local Climate Science & Education Series.

Learn about and listen for owls, as we take an easy evening walk on the trails of the Marin Headlands.

Join historian and retired ranger John Martini on this twilight exploration of the former cemetery, including visits to forgotten funerary monuments along the golf course fairways.

Join historian and retired ranger John Martini on this twilight exploration of the former cemetery, including visits to forgotten funerary monuments along the golf course fairways.