Sophisticated Crab & Fin on international St. Armands Circle attracts discriminating foodies looking for global seafood, from a flight of raw oysters from various oceans to rich cioppino made with local red snapper. The sprawling menu offers fine-dining temptations such as Dover sole, blue lump crab cake or a 16-ounce grilled pork porterhouse. And it’s one of the best spots around for local grouper sandwiches and stone crab claws. Relax in the formal dining room or outside under umbrellas and watch the world waft by as the piano player tinkles out tunes from behind a screen of palm trees.