Carnival Corporation is the largest and most profitable cruise company in the world. Carnival Corporation owns Carnival Cruise Lines, Holland America Line, Costa Cruises, Cunard Line, Seabourn Cruise Line, and Windstar Cruises. The company's cruise lines operate 45 ships that travel to a wide var
Carnival Cruise line is the largest of the cruise corporations. The second largest cruise line is Royal Caribbean and the third largest is Princess. Carnival competes with their competition by owning six other cruise lines. There are 46 cruise ships in the cruise industry.