This short connector trail, lined by lovely trees, links the Mason Street bike path to the east Crissy Field parking area. It'll take you by Crissy Field Center, the Parks Conservancy's urban environmental education center in partnership with the National Park Service and Presidio Trust.

This access trail to Rancho Corral de Tierra connects visitors with the Spine Trail. Along the way, it takes visitors past the Ember Ridge Equestrian Center; you're free to look but please don't disturb the horses (or the staff!).

Located in the Marin Headlands north of Rodeo Lagoon, Fort Cronkhite is a former World War II military post that stands at the edge of the Pacific Ocean. Fort Cronkhite is one of the few examples of these World War II "mobilization posts" remaining in the country.

From Golden Gate National Recreation Area headquarters at Fort Mason (the big, green-roofed building), follow the winding, paved pathway across the Great Meadow...beloved by locals as one of San Francisco's most popular "backyards.

To get to the trailhead, you'll need to make your way into the Green Gulch Farm. Go past the left side of the farm, and you'll start an ascent.

Watch hawks trace circles in the sky from rolling hills in the Marin Headlands. Besides its widescreen vistas of the Pacific and the Golden Gate, Hawk Hill offers fascinating wildlife experiences.

It is the best place to witness the fall raptor migration with the Golden Gate Raptor Observatory,

Start at the southern end of the Coastal South Trail and head east. The trail starts out dropping on a fairly straight trail. Soon, the very tight switchbacks will start and continue, and proceed until you are dropped out in a flat field.

Most hikers utilize this trail to complete the shorter loop through the Muir Woods National Monument. This direction is a gradual climb and connects with the Redwood Creek Trail at the end of the valley. Expect a good amount of traffic going in both directions.