Prince Charles and the Duchess of Cornwall have been out at the Big Lunch in Piccadilly. After being welcomed by actor Stephen Mangan they sang God save the Queen with the huge crowd gathered on the street.
Picnickers are enjoying a Heston Blumenthal feast in the Buckingham Palace Gardens before the Diamond Jubilee concert.
The Queen watched a star-studded Diamond Jubilee Concert outside Buckingham Palace on Sunday evening.
Here are some of the best pictures from the Diamond Jubilee River Pageant.