I love to hike, but I also like visiting cities and taking in the sights. An urban hike was just the thing. The route we followed (and there are several to choose from) started out in the Castro neighborhood and went up to Twin Peaks. We saw historic buildings which had survived the earthquake, winding streets, great stairways, beautiful views (no fog on our day), and explored an old eucalyptus forest. At times you can forget you are in a big city.
At the end of our morning hike we were back in time for a great lunch.