Britain's Queen Elizabeth II embarks from Chelsea Harbour on the first part of their journey during the Diamond Jubilee river Pageant in London on June 3, 2012. Britain is celebrating the diamond jubilee of Queen Elizabeth II, marking 60 years on the throne during which she has set a number of landmarks. One million people are expected to line the river to see the extravaganza of steam boats and tugs, speed boats and historic vessels. AFP PHOTO POOL / EDDIE MULHOLLAND / AFP / POOL / EDDIE MULHOLLAND        (Photo credit should read EDDIE MULHOLLAND/AFP/Getty Images)