Royal Caribbean today announced that it will add an 11th ship to the 2011 Europe season.   Mariner of the Seas will homeport in Rome (port of Civitavecchia) from March through October, 2011. Previously the ship sailed year-round from the Port of Los Angeles on one-week Mexican Riviera sailings.

On January 16, 2011, Mariner of the Seas will reposition from Los Angeles on a 16-night itinerary to Valparaiso, Chile, followed by a 14-night voyage that cruises the Straits of Magellan and Cape Horn at the southern tip of South America to Sao Paulo (Santos), Brazil. The ship will then offer a short Brazilian cruise season, before crossing the Atlantic to debut in Europe at its new seasonal homeport of Rome (Civitavecchia), where Mariner of the Seas will sail seven-night Western Mediterranean and 12-night Mediterranean Holy Land and Mediterranean Egypt itineraries. In November 2011, Mariner of the Seas will debut at Galveston to offer Texas vacationers two roundtrip seven-night Western Caribbean itineraries through April 2012.