New England’s coastline is chock-a-block with clam shacks (where the seafood is deep fried) and lobster shacks (with deep pots of water to boil or steam lobsters). At these places, guests often sit elbow to elbow at picnic tables and dig into lobster rolls, whole lobsters with butter, baskets piled high with fried clams, and sides like corn on the cob and potato salad. The Barking Crab offers all that, smack dab in the city. It’s located on the Fort Point channel, essentially qualifying it as a seaside restaurant.