Carnival has been adding features to its existing ships, such as the Seuss at Sea kids program and a series of longer, nine-day-plus cruises with special itineraries called Carnival Journeys. Carnival is launching the Carnival Panorama, its third and final Vista-class ship, on the West Coast of the U.S. in December, and it expects to launch the 5,200-passenger, LNG-powered Mardi Gras at Port Canaveral next year.