Costello’s Clam Shack sits right at the Noank Shipyard, tucked along the Connecticut shoreline where the water does most of the decorating. At Costello’s Clam Shack, the clam bellies are the main event, and they carry that title with real authority. Sides That Steal The SceneGood sides at a seafood shack are not an afterthought. At Costello’s Clam Shack, the french fries have developed something of a reputation all on their own. Why This Shack Keeps Calling You BackSome places earn loyalty through consistency, and Costello’s Clam Shack has built that loyalty one season at a time.