ONES TO WATCH

DISCOVERY PRINCESS – the final Royal Class ship debuts in April, featuring Ocean Medallion technology that lets you order drinks and other services wherever you are on the ship.

A-ROSASENA – the sustainable river ship launches in May, and will offer family cabins sleeping up to five guests as well as a Finnish sauna and ice grotto.

CARNIVAL CELEBRATION – marking its 50th year, the line launches the new ship in November with fun-packed attractions including a rollercoaster, mini-golf and water park on board.

MSCSEASCAPE – the second Evo Class ship is set to enter service in November with a host of new additions,including the biggest MSCYacht Club in the fleet.