The Queen's rowbarge 'Gloriana' leads the manpowered section of the Thames Diamond Jubilee Pageant on the River Thames in London on June 3, 2012. Queen Elizabeth II was to sail on a ceremonial barge down the Thames on Sunday at the centre of a 1,000-boat pageant to mark her diamond jubilee, although heavy rain threatened to spoil the party. AFP PHOTO / PAUL ELLIS
The Spirit of Chartwell, carrying members of Britain's royal family, approaches Chelsea Bridge during the Queens Diamond Jubilee Pageant on the River Thames in London June 3, 2012. Britain's Queen Elizabeth joined an armada of 1,000 boats in a gilded royal barge, in a pageant down the River Thames on Sunday in a spectacular highlight of four days of nationwide celebrations to mark her Diamond Jubilee. REUTERS/Ki Price (BRITAIN - Tags: SOCIETY ROYALS ENTERTAINMENT)
Boats of all shapes and sizes take part in a pageant near Tower Bridge in celebration of the Queen's Diamond Jubilee, along the River Thames in London June 3, 2012. Britain's Queen Elizabeth joins an armada of 1,000 boats in a gilded royal barge on Sunday in a spectacular highlight of four days of nationwide celebrations to mark her 60th year on the throne. REUTERS/Dylan Martinez (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT SOCIETY ROYALS)