Britain's Prince William arrives with his wife Catherine, Duchess of Cambridge to board the Spirit of Chartwell to join Queen Elizabeth and other members of the Royal Family for the Diamond Jubilee Pageant on the River Thames in London June 3, 2012. Britain's Queen Elizabeth led an armada of 1,000 boats in a gilded royal barge down London's River Thames on Sunday in a spectacular highlight of four days of nationwide celebrations to mark her 60th year on the throne.[Photo/Agencies]