Boston Harbor Cruises: A variety of sightseeing tours by boat, where passengers can learn about lighthouses, the Charles River, the history of Boston, and more. BHC also offers a whale watching cruise and an entertaining (and wet!) ride on the Codzilla. For additional information, call 617-227-4321 or visit bostonharborcruises.com.

Boston Light Tours: Boat cruise and narrator tour of the Boson Harbor Islands. The three-hour trip is led by a ranger from the National Park Service. For additional information, call 617-223-8666 or visit bostonislands.org.

Boston Seaport Boat Charters: Private charters for weddings, student events, and group tours, as well as special event cruises. For more information, call 617-261-6633 or visit bostonseaportboatcharters.com.

Charles Riverboat Company: Daily sightseeing cruises, including a tour of sites in Boston and Cambridge along the Charles River, the Boston Harbor and the Charles River locks, and a sunset cruise on the river. Boats are also available for group tours and private charter. For additional information, call 617-621-3001 or visit charlesriverboat.com.

Daily Sail on the Liberty: A two-hour ride aboard Liberty, a 125-foot replica of a nineteenth century schooner. The tall ship will take a tour of the Boston Harbor and the Boston Harbor Islands. For additional information, call 617-742-0333 or visit libertyfleet.com.

Flagship Adventures: European-styled rigid inflatable boats (RIBS) designed for a day of fun on the water. Boats are available for private or corporate charter. For additional information, call 978-744-3524 or visit flagshipadventures.com.

Historic Boston Harbor Tours: A variety of tours, conducted by Massachusetts Bay Lines, discussing the Boston Tea Party, the ride of Paul Revere, the Boston Massacre, and more aboard a cruise vessel on the Boston Harbor. Mass Bay Lines also offers music cruises, sunset cruises, whale watch tours, and private charters. For additional information, call 617-542-8000 or visit massbaylines.com.

New England Aquarium Whale Watch: Exciting trips on a high-speed catamaran to Stellwagen Bank to see some of the largest animals on the planet, organized by the New England Aquarium and Water Transportation Alternatives. A naturalist narrates the trip and describes the whales in their natural habitat. Discounts available to those who ride the Harbor Express Water Shuttle into Boston from Quincy or Hull. For additional information, call 617-222-6999 or visit harborexpress.com.

Odyssey Cruises: Dinner cruises, weekday lunch cruises, weekend brunch cruises, and more aboard one of Boston’s biggest, most luxurious cruise vessels. For additional information, call 866-307-2469 or visit odysseycruises.com.

Princess Yacht Charters: The 110-foot majestic Princess Yacht is Boston’s premiere private charter yacht, a perfect setting for corporate entertainment and weddings for 25 to 300. For more information, call 617-951-2460 or visit princessyacht.com.

Rowes Wharf Water Transport Charters: Various tours and cruises to the Boston Harbor Islands and Boston’s lighthouses are offered in the summer, as well as private chartered excursions. For additional information, call 617-406-8584 or visit roweswharfwatertaxi.com.

Seaport Elite: A wonderful venue for any gathering or celebration. The elegant private charter yacht is great for any special occasion. For more information, call 617-754-9720 or visit seaportelite.com.

Spirit of Boston Cruises: Lunch cruises, dinner cruises, and more for all celebrations and occasions to be enjoyed by family and friends. For additional information, call 866-211-3807 or visit spiritofboston.com.

Tall Ship Formidable and Tall Ship Poincare: A unique experience aboard a square-rigged vessel, where passengers can learn about the history of Boston and try their hand at setting sails, tying knots, and more. For additional information, call 617-262-1119 or visit tallshipformidable.com.