We spent about five days exploring San Francisco. There really is so much to do besides wandering through Fisherman's wharf and riding the cable cars. We did a lot of tourist stuff, but it was also fun to just walk through the city streets. We learned a lot about the city from Reed our tour guide at Mr. Toad Tours. Twin peaks gives you a great view of the city, but can be a little tricky to find. Also across the Golden Gate and a short drive through the back country you can find Muir Woods for a little outdoor activity. My favorite thing though was touring Alcatraz with the audio guide. It was very interesting!