Before visiting CA for the first time I heard about Fisherman's Wharf -- and that it's a great place for some sour dough bread. It *was* good and we bought a few loaves for the rest of our road trip and even brought one back home to FL.
We took a tour around SanFran by trolley and stopped at the Wharf for lunch -- a shrimp salad sandwich on the best crusty bread! While we were there, we were convinced into taking a sun set boat ride under the Golden Gate bridge. Great idea! But at the beginning of May the boat ride was *freezing* so I can't even imagine how it would be in the fall but it was beautiful and way cool going under the bridge. I highly recommend it.