Just down the river from its sibling restaurant, Abbott's, and adjoining a working shipyard, Costello's features a very similar menu and slightly superior waterside views. The clam fritters (eight for $4.95) are better bypassed, however; the dough was rubbery, and the few clam strips I found were unusually chewy.
Costello's Clam Shack
145 Pearl St., Noank, Connecticut
860-572-2779