Britain's Queen Elizabeth looks at cakes and sweets on the patisserie counter with chefs Marco Pierre White (L) and James Martin, on board P&O's new cruise liner "Britannia", during the ship's official christening in Southampton, southern England March 10, 2015. [Photo/Agencies]

The Queen was accompanied by Prince Philip on Tuesday, and the ceremony was launched at about midday. The new ship became the fifth cruise ship that named by the Queen.

With 15 passenger decks, 13 bars and 13 restaurants, four swimming pools and nine entertainment venues, the vessel, which adorned with a version of the Union Jack on its bow, will make her maiden voyage to Spain, Italy and France on March 14.

The new ship bears the same name of a former Royal Yacht, which was decommissioned in 1997 after more than 40 year of service.