Up the 103 steps-and-stepped-boardwalk of the Marine Cemetery Vista/Mountain Lake Trail connector that can be accessed a little way in from the 14th Ave. Gate (first pic).
From the west foot of the Marine Cemetery Vista, up Rob Hill via Battery Caulfield Road to Immigrant Point Overlook where the trailsign is for the Connector Trail that curves down to Lincoln (208 steps: second pic). Soon crossing over Lincoln in cool, refreshing, blowing fog down the sandy trail to the Batteries to Bluffs west trailhead atop Battery Crosby. Lots of greenery and wildflowers up 'n down the 473 steps (pics 3 through 16) where I scored three more earlyberries along the trail.
Out at the east BTB trailhead past Fort Scott (old church, 17th pic) and the Golden Gate Overlook.
Last pic: Golden Gate Overlook area/Coastal Trail, passing by old batteries on my way to the second bridge area bus stop for the #28 19th Ave.-Daly City. Another #28 will take you to Fort Mason.