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)
The 'Gloriana' leads the hand-powered craft towards Tower Bridge, during Queen Elizabeth's Thames river pageant during her Diamond Jubilee in London June 3, 2012. Britain's Queen Elizabeth joined an armada of 1,000 boats down London's River Thames to the pealing of bells on Sunday in a spectacular highlight of four days of nationwide celebrations to mark her 60th year on the throne. REUTERS/Peter MacDiarmid/POOL (BRITAIN - Tags: ROYALS ENTERTAINMENT CITYSPACE)
Britain's Queen Elizabeth II is greeted by Chelsea pensioners at Chelsea Pier in London on June 3, 2012 at the start of the Thames Diamond Jubilee Pageant. 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 / POOL / BETHANY CLARKE