Ask your travel agent about Portland, Maine. It is a quintessentially cute New England town on the Atlantic Ocean, not the Long Island Sound which is literally brown murky water.

You can fly into Boston, spend a night or two there, and then take a bus or train 2.5hrs to Portland. Recommend in the summer. It’s very walkable, has great restaurants and bars and breweries, beach, water stuff (fishing and whaling tours, ferry to small islands, etc), museums, etc. It’s a popular local tourist destination, most of Nee England coastline is. I don’t think it’s a popular international destination.