BBC: Well-wishers greeted the Duke and Duchess of Cornwall at a street party in Piccadilly, central London, where 500 tables were set up for a Diamond Jubilee celebration lunch.
The royal couple were surprise visitors at the event.
The Big Jubilee Lunch is encouraging people to share food with neighbours and friends in street parties and picnics.
The BBC's Sangita Myska reports. Watch BBC video » | Sunday, June 03, 2012
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