81/114 mi, 5 M, 6878 ft; Palmetto Skyline,San Bruno Mountain

Depart early from Grant Park and Community Center, Los Altos, on saddle, to visit: Crystal Springs, "Jail Trail" to Skyline College ESB, Milagra Ridge (steep loose twisty gravel single track), Pacifica coast, Ocean Beach, Birthday Suit option at Baker Beach, Land's End, Legion of Honor, Presidio Pop Up food truck fiesta (retail Mess Hall has newly opened), inbound via Fisherman's Wharf, Embarcadero, urban Mission Bay, San Bruno Mtn., shorter 81 mile option to board Caltrain San Bruno to Castro St. Mountain View, Sawyer Camp Trail, to finish. Use all day/night kit (lights, etc.,) and bring food and funds. Ample retail amenities and scenic pauses. presidio.gov/explore/park-attractions/presidio-pop-up-schedule Start location: 1575 Holt Avenue, Los Altos, CA [Route/Map]