A cruise ship is a large, intricately designed passenger vessel predominantly utilized for leisurely journeys and recreational trips. These ships are particularly distinctive due to their array of amenities, accommodations, and activities, which often include varied dining options, entertainment facilities, sport areas, shops, and even wellness centers, aiming to provide a comprehensive holiday experience while at sea. The itineraries generally involve multiple stopovers at different ports, allowing passengers to explore various locations. The explicit purpose of a cruise ship is to provide a pleasurable and relaxing travelling experience wherein the journey itself, rather than transportation from point A to point B, constitutes the primary appeal.

1. Royal Caribbean's "Symphony of the Seas" - This ship holds the title for the world's largest and has 18 decks, 22 restaurants, 24 pools, and a park with more than 20,000 tropical plants. Accommodating up to 6,680 guests, this cruise ship is used extensively for pleasure voyages around the Caribbean. 2. Carnival Cruise Line's "Mardi Gras" - As Carnival's newest and largest cruise ship, it features attractions like BOLT, the first-ever roller coaster at sea, water slides, multiple dining options, and a variety of entertainment for passengers to enjoy on pleasure voyages. 3. Celebrity Cruises's "Celebrity Edge" - This ship is known for its sleek design and many luxurious amenities, including a high-end spa and several gourmet restaurants. It was designed specifically for pleasure voyages, with routes that include the Mediterranean, Caribbean, and North America's Pacific coast. 4. Norwegian Cruise Line's "Norwegian Bliss" - This ship offers an array of amenities and activities, including a race track, laser tag, water slides, multiple dining venues, and a Broadway-style theater. Built for pleasure voyages, its itineraries include Alaska, the Bahamas, the Caribbean and the Pacific coast. 5. Princess Cruises's "Sky Princess" - Equipped with luxurious cabins, pools, movie theaters, restaurants and nightlife spots, this ship is dedicated to providing a pleasure voyage to its passengers. Its itineraries include the Caribbean, Mediterranean, Baltic and the British Isles.

Fun Fact: The world's largest cruise ship, "Symphony of the Seas" owned by Royal Caribbean International, is an impressive maritime behemoth. Measuring at an astonishing 1,188 feet in length, it is nearly as long as the Empire State Building is tall. So vast, it has 18 decks and can comfortably accommodate 6,680 passengers in addition to its 2,200 crew members. It features various on-board attractions including a surf simulator, rock climbing walls, ice skating rinks, multiple theatres, and a central park comprising of over 20,000 tropical plants. It's like a floating city offering an extravagant pleasure voyage experience!