MIAMI, April 14, 2014 /PRNewswire/ -- New Orleans' largest year-round cruise ship, the 3,646-passenger Carnival Dream, will depart on its inaugural six-day cruise from New Orleans this afternoon, further solidifying Carnival's distinction of the port's largest cruise operator with two ships carrying more than 400,000 passengers annually – the most of any cruise line. The special six-day voyage, visiting Costa Maya, Mahogany Bay (Isla Roatan), and Cozumel, will depart from the newly refurbished Erato Street Cruise Terminal, which has undergone a $2.3 million upgrade to accommodate a ship as large as the 130,000-ton Carnival Dream. Beginning April 20, Carnival Dream will launch year-round seven-day service from New Orleans offering three distinctly different itineraries – western Caribbean cruises visiting Montego Bay, Cozumel, and Grand Cayman; or Mahogany Bay (Isla Roatan), Belize and Cozumel; and a Bahamas/ Florida route calling at Key West, Freeport and Nassau. Carnival Dream joins Carnival Elation which sails year-round four- and five-day cruises to Mexico. A study by Cruise Lines International Association (CLIA) found that spending by Carnival and other cruise operators in Louisiana topped $399 million in 2012, generating 7,548 jobs and $294 million in personal income. CLIA also ranked New Orleans the sixth largest cruise port in the U.S. The 1,004-foot-long Carnival Dream offers a host of on-board innovations, including WaterWorks featuring a 303-foot-long Twister water slide – among the longest at sea – as well as a luxurious 23,750-square-foot Cloud 9 Spa, a half-mile outdoor promenade with whirlpools that extend out over the ship's sides, and more than two dozen bars, restaurants and lounges, including the poolside RedFrog Rum Bar and BlueIguana Tequila Bar.