Britain’s Queen Elizabeth smiles, during her visit to her grandson, Prince William, at RAF Valley, in north Wales April 1, 2011. Prince William, who is due to marry Kate Middleton on April 29, is serving as a search and rescue helicopter pilot, based at RAF Valley on Anglesey, an island off the north west coast of Wales. REUTERS/Christopher Furlong/Pool (BRITAIN – Tags: ENTERTAINMENT ROYALS IMAGES OF THE DAY)