Head to Stonington, the oldest village in Connecticut, where you can cruise Main Street's antique shops before sampling some seafood. York, Maine, is where you'll find the iconic Nubble Lighthouse and beaches for surfing and lounging. Enjoy all the art galleries, fudge shops, and lobster shacks in Rockport, Massachusetts. Weathered cedar cottages, swaths of sandy dunes, and family-friendly beaches: New England has its signature style. It also has limited space and legions of devoted fans, which can lead to overcrowding, particularly in the summer months. As travelers make a beeline for perennial favorites like Newport, Rhode Island, Provincetown, Massachusetts, and Kennebunkport, Maine, why not take a proverbial left turn? There are loads of under-the-radar towns along these states' coastlines that have their own unique charms and draws. Here are seven of the best small coastal towns in New England to consider for a beach vacation away from the crowds.…