About Carnival Cruise Line Carnival, a unit of Carnival Corporation & plc (NYSE/LSE: CCL; NYSE: CUK ), is "The World's Most Popular Cruise Line®" with 24 ships operating three- to 16-day voyages to The Bahamas, Caribbean, Mexican Riviera, Alaska, Hawaii, Canada, New England, Bermuda, Australia, New Zealand and the Pacific Islands. The company currently has two new 133,500-ton ships on order--Carnival Vista, set to debut in May 2016, and an as-yet-unnamed vessel scheduled to enter service in 2018.