San Francisco is famous for fog. Tony Bennett sang about it: "the morning fog may chill the air, I don't care." Lots of black-and-white suspense films, mostly film noir, have used it to great effect.
I took this photo in Tiburon, not far from the north end of the Golden Gate Bridge. If it weren't for Angel Island and fog we'd be looking at the city of San Francisco across the bay. This small town has turned its waterside into a walkable park. I was mighty impressed by the way someone used that natural rock as the base for a fishing pedestal at the end of that pier.
Decades ago, when I was reading Popular Photography magazine, I saw an article which said not to wait for sunny days to take pictures; some of your best opportunities are in "bad" weather.