Built in 1995, P&O Cruises Oriana is the second smallest yet oldest ship in the P&O Cruises fleet. Like two other P&O ships; Adonia and Arcadia, Oriana is child free. P&O Cruises Oriana starts 2012 with a World Cruise followed by a series of other Cruises from Southampton; these range from 3 night mini cruises to a 30 night Mediterranean cruise in October. P&O Oriana was the first new build for P&O Cruises and the first for the British market.