I would say Half Moon Bay, but then again you don't want to drive for an hour...depending where you're exactly from & how the traffic is. Maybe it'll only take you between thirty to forty-five minutes because it took me about an hour & I'm from the 408.
well lets see. if she likes animals, take her to the sf zoo. theres alot you can do though from walking at pier 39 and going up to coit tower or twin peaks to look at the view. it all depends on the girl also. but yeah you dont want to go cheap. i wouldve said bring her to santa cruz beach boardwalk then take her to the beach but you said u dont want to drive out.