"How many feet of a cruise ship is underwater" is a query referring to the submerged portion of a cruise ship's hull. For instance, a colossal cruise ship with a 200-foot draft has 200 feet of its hull below the waterline.
This measurement is crucial for various reasons: it determines a ship's stability, buoyancy, and resistance to water flow. It also plays a role in shipbuilding, port operations, and maritime regulations. Historically, ship drafts have evolved from shallow vessels in ancient times to the deep-draft ocean liners of today.