Embark on a whale watch with Boston Harbor Cruises. These boats set sail for the Stellwagen Bank Marine Sanctuary, a haven for dolphins, whales, and other diverse marine life. You'll have a good chance to view several different species of large whales, including humpbacks, finbacks, minkes, pilot whales and the critically endangered right whales! At the same time, all your questions will be answered by New England Aquarium Naturalists, who are always on board. Not to mention, these boats are fast, spacious, comfortable, air-conditioned, and include an indoor snack bar! More sightseeing cruise options include historical sightseeing cruise, Charles River and Locks tour, USS "Constitution" cruises; sunset cruise, and lighthouse tours. Fast ferry service to Cape Cod, as well!