2.8 miles, 1-3 hours
The entire bay area ridge trail is about 510 miles long and circles the entire bay. This short section winds through San Francisco's Presidio District and has some great views of the bay as well as nice walks through large trees.
Near the middle you can take a detour to the National Cemetery Overlook with views of the bay and the golden gate bridge.
The final section runs along the Coastal Trail ending at the Golden Gate Bridge.