Visit and try some local northern California wine in Livermore.
Drive across the Golden Gate bridge and hike along any number of trails in the Marin Headlands for beautiful views of San Francisco and the bay.
Check out FB headquarters and take a picture at the like sign!
Walk along the Embarcadero and enjoy views of the Bay Bridge and great food! There are different stalls with pre prepared foods, groceries, and other local goods.
Enjoy some great restaurants and bars downtown!