When discussing the physical characteristics of a cruise ship, understanding the different sections of the vessel is essential. The term "aft" refers to the rear or back portion of the ship. It encompasses the stern, which is the rearmost part of the ship, and the area around it. Describing the aft of a cruise ship as "rocky" is not a common or accurate description.
Cruise ships are typically designed with smooth, streamlined hulls to minimize drag and enhance stability in the water. The exterior surfaces of cruise ships, including the aft, are generally made of steel or aluminum, which provides strength and durability. These materials are not inherently rocky but rather smooth and resistant to corrosion.