Carnival Corp. engages in the operation of cruise ships. It operates through the following business segments: North America Cruise Operations, Europe Cruise Operations, Cruise Support, and Tour and Others. The North America Cruise Operations segment includes the Carnival Cruise Line, Holland America Line, Princess Cruises, and Seabourn. Europe Cruise Operations segment consists of AIDA, Costa, Cunard, and P&O Cruises (UK).