The Royal Yacht Britannia criss-crossed the world seven times during her 43 years of service, and remains the only ship in the world whose Captain, by tradition, was always an Admiral. The Queen's 'floating palace', the one place in which she can truly be at ease, has hosted four Royal honeymoons, promoted British industry worldwide - and provided shelter for a group of Aden refugees. Royal biographer Brian Hoey has been granted access to the State Apartments and compiled this affectionate tribute of the most famous ship in the world with the co-operation of her officers and crew. The full story is told here in this updated Diamond Jubilee edition, from 1951 to the present day, chronicling what life was really like onboard Britannia.