Moderate

During the Cold War, anti-aircraft missile stations were constructed on the northern and southern sides of Rodeo Lagoon in the Marin Headlands. Radar sites were placed atop Hawk Hill and Hill 88.

This segment of the Bay Trail, skirting the northern edge of Fort Mason, features lovely Golden Gate Bridge vistas and an overhead view of the piers and buildings of lower Fort Mason, the port of embarkation from which 1.6 million military personnel shipped out to the Pacific Theater.

Tennessee Valley is an amazing offshoot of the Marin Headlands, with hiking trails that suit the whole family.