A man wears a hat with a doll figure of Britain's Queen Elizabeth as he walks on the banks of the River Thames in central London June 3, 2012. A flotilla of 1,000 boats will sail London's River Thames on Sunday in a spectacular highlight of four days of nationwide celebrations marking the Diamond Jubilee of Britain's Queen Elizabeth. REUTERS/David Moir (BRITAIN - Tags: ROYALS SOCIETY ANNIVERSARY)
People wave from their boat on the River Thames, in celebration of the Queen's Diamond Jubilee, near Putney Bridge 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/Kevin Coombs (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT SOCIETY ROYALS)
Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall (C) attend the 'Big Jubilee Lunch' street party in Piccadilly in London ahead of the Thames Diamond Jubilee Pageant on June 3, 2012. Queen Elizabeth II was to sail on a ceremonial barge down the Thames 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 / CHRIS JACKSON