The keel laying ceremony of a newbuilding for Carnival Cruise Line, which is part of the Carnival Corporation & plc group, has taken place at Fincantieri’s Marghera shipyard. The vessel will go to sea in 2018. It will be about 133,500 gross tons, carry almost 6,500 people (guests and crew), and will be realised on the basis of the project of the twin vessel Vista, the largest ship which Fincantieri has ever built, due to delivery at the end of the month in Monfalcone, the shipbuilder said in a statement.