For one-day tours, tickets allow for unlimited re-boarding. Tickets also get you discounted rates for a Boston Harbor cruise as well as discounted entry to the Boston Tea Party Ships & Museum.

So, you’ve got just one day in Boston? With a city so full of history, sights, sounds, and beers, it can be hard to figure out exactly what you must do. Well, my friends, worry no longer.

It’s that time of year again when more than a million revelers fill the streets of America’s most Irish big city for the South Boston St. Patrick’s Day parade ...