Carnival is the largest global cruise company, with 92 ships in service at the end of fiscal 2023. Its portfolio of brands includes Carnival Cruise Line, Holland America Line, Princess, and Seabourn in North America; P&O Cruises and Cunardin the United Kingdom; Aida in Germany; and Costa Cruises in Southern Europe. It's currently folding its P&O Australia brand into Carnival. The firm also operates Holland America and Princess Alaska tours in Alaska and the Canadian Yukon. Carnival's brands attracted nearly 13 million guests in 2019 before covid-19, a level it reached again in 2023.