You won't find fresher fish anywhere in town than at this simple, cement-floor shack by the fishing boat docked at Watson Island (except maybe at the fish shack next door, but Casablanca has more variety and takes credit cards). You also won't find bigger crowds, not even at velvet-rope clubs. But this is a pretty pleasant bunch. So dump your friends or family under the trees along Government Cut to watch the cruise ships sailing by, and picnic on Casablanca's fresh seafood salad and fruit drinks. Go in and grab a whole fish from one of the dozens of iced bins packed with many variations on the usual suspects seen in town: black grouper, much more succulent than red; not just yellowtail but mutton, mangrove, and hog snappers. There's also a fabulous shellfish selection. Line up with the other fish schleppers at the cash register, pay, and decide what you want done with your catch: scaling, cleaning, filleting, whatever. Maybe ten or fifteen minutes later your fish will be ready. Tip the flashy filletmeisters in back a buck or two and they'll cheer like you just won an Oscar.