Boston is an excellent base for exploring New England, with a wealth of historic towns, seaside spots, and Revolutionary sites within easy reach. If you have a fourth or fifth day, here are the strongest day trips.
Salem. About 30 minutes north, Salem is famous for the 1692 witch trials, and it leans fully into that history with museums, memorials, and (especially around Halloween) a festive, spooky atmosphere. Beyond the witch lore, it's a handsome old seaport with the excellent Peabody Essex Museum and a maritime history of its own. It's easily reached by commuter rail, making it the most popular day trip from the city.
Lexington and Concord. West of the city, this is where the Revolution began — the first shots of the war were fired at Lexington Green and Concord's Old North Bridge in April 1775. Minute Man National Historical Park preserves the battle road between them, and Concord adds literary history (Walden Pond, and the homes of Emerson, Hawthorne, and the Alcotts). It's best explored by car, or via organized tours from Boston.
The North Shore. The coast north of Boston — Marblehead, Gloucester, Rockport, and Cape Ann — offers classic New England seaside scenery: harbors full of sailboats, lobster shacks, rocky coves, and artists' colonies. Rockport's Bearskin Neck and the fishing town of Gloucester are highlights. A car gives the most freedom, though some towns are reachable by commuter rail.
Plymouth. About an hour south, Plymouth is where the Pilgrims landed in 1620. You can see Plymouth Rock, tour the Mayflower II (a full-scale replica ship), and visit a living-history recreation of the early colony. It's a natural pairing with the region's founding-history theme.
Cape Cod. Further south and bigger than a comfortable day trip for many, the Cape rewards an early start or an overnight: beaches, dunes, lighthouses, seafood, and the artsy tip at Provincetown. If you only have a day, the nearer parts of the Cape are doable; ideally, give it a night.
Getting around. Several of these (Salem, parts of the North Shore, Plymouth) are reachable by commuter rail or bus, but a rental car opens up far more, especially Lexington and Concord, the North Shore villages, and the Cape. Organized day tours from Boston are a good option for the Revolutionary sites and Cape Cod if you'd rather not drive.
