At 185,000 tonnes, and 345m in length with 16 guest decks, Arvia is P&O’s second ship to be powered by liquefied natural gas (LNG).
The vessel also features an optimised hull design to minimise drag and is installed with the latest energy-efficient technology.
P&O Cruises president Paul Ludlow said: "Arvia embodies the newest trends in travel, dining and entertainment, and is the epitome of a sunshine resort sailing year-round to the warmest climates.