"How much of a cruise ship is below the water" refers to the submerged portion of a cruise vessel, including its operational systems and lower hull. For instance, a typical cruise ship may have up to 75% of its structure submerged beneath the waterline.
The submerged area of a cruise ship is crucial for stability, buoyancy, and propulsion. It houses essential components like engine rooms, fuel tanks, and ballast systems, ensuring the ship's safe and efficient operation and navigation. One notable historical development is the introduction of bulbous bows in the 1950s, significantly enhancing fuel efficiency by reducing wave resistance.