Some people might wonder: Why would a person go all the way to the southernmost point in the continental United States for a fish sandwich? Well, the short answer is that we didn’t go to Key West just for a fish sandwich — we scoped out a hotel, went fishing, drove scooters and jet skis, and drank beer. The long answer is that the hogfish isn’t any old sea critter you can pick up at Whole Foods, and the place that serves it ranks very high on the list of best waterfront bars in America (just behind the Beachcomber in Wellfleet, MA, in this author’s black book). But we were principally after a filet of fish. Besides, if you get just one good memory in 72 hours, that’s a pretty good one, for a long weekend.