64 mi, 5 M, 6824 ft; Milagra Ridge,Marin Headlands Trails,Palmetto Skyline,Conzelman,San Bruno Mountain,Sharp Park

Why bother our otters? Escape the weekend crowds and explore more. From Bldg. 12, Skyline College West, we'll zip from unpaved Milagra Ridge, to Pacifica by the Sea, get uppity above Mussel Rock, shop or not along Lake Merced, see Mt. Sutro above UCSF (summit option), dive into Golden Gate Park, traverse Immigrant Point, zip north over the Gate, hike Hawk's Hill, loop Battery Townsley to Rodeo Beach, crunch gravel up the Bobcat Trail, lunch in Marin City, tour Sausalito, zip south over the Gate, cross the Park, top up San Bruno Mtn., and see more retail lunch options on our way to finish at Bldg. 12. Nominally, this tour's a Mountain Goat, but it is completely diggable by wide clearance road and gravel bikes. Start location: 3300 College Dr #12, San Bruno, CA 94066 [Route/Map]