This short loop trail covers some backstreets in Noe Valley and offers a nice view down to the Bay. Start at 24th at Elizabeth St. and head west until you hit Castro St. Make a left and follow Castro, first downhill, then uphill, until you reach 27th St.
Turn left on 27th St (stairs are optional), hike over the hill, go down to the cul-de-sac, and take the stairs to descent onto Noe St. and then Sanchez St. Turn left on Sanchez and follow the slow street back to 24th or Elizabeth.