2 June 2012
Last updated at 19:41
Her Majesty received a warm welcome upon her arrival at Epsom for the Derby, shaking hands as she passed through the crowds.
Princess Beatrice, 23, and Princess Eugenie, 22, joined their grandmother at the Epsom Derby, watching the action from the Royal balcony.
Singer Katherine Jenkins performed the national anthem to mark the Queen's arrival at the racecourse.
Racegoers were getting into the Jubilee mood at Epsom, this one stringing bunting to the top of a double-decker bus ahead of the Queen's arrival at the racecourse.
Eleven-year-old Sheyenne Bayne, from Perth, sits on the grass in the North Inches park, and watches the kilt run which formed part of the city's Jubilee celebrations.
Former EastEnders star Barbara Windsor greets a war veteran at a Big Jubilee Lunch street party in Ealing, West London.
Despite first impressions, the whole of the Royal Family did not join the Queen at Epsom - these are racegoers disguised with the help of face masks.
Landlady Kelly Bailey raises a pint of beer outside her pub, aptly-named The Jubilee, in York, after holding a street party.
Brightening up a light grey sky with red, white and blue, The Red Devils entertained crowds at Epsom with their parachute display, proudly flying a giant Union flag moments before the Queen arrived.
Enjoying the celebrations were youngsters from Hollinhey Primary School, Cheshire, with the girls dressing as princesses on a colourful float at Sutton and Langley Jubilee Parade.
People take pictures of some of the boats which will make up the Jubilee river pageant. Currently docked in Putney on the river Thames, they'll be part of a flotilla of 1,000 vessels along the river.
A woman walks into a fruit and vegetable shop in the Northumberland market town of Corbridge, as a canopy of Union flags hangs overhead.
A Routemaster bus displays a congratulations message on its destination board in central London, as four days of celebrations begin.
A six-year-old girl gets in the Jubilee spirit by wrapping herself up in a Union flag and wearing a mask of Catherine, Duchess of Cambridge, at Chatsworth Park in Derbyshire.
A street party in Primrose Hill, north London, sees partygoers dressing up and enjoying a hog roast, as red, white and blue-coloured bunting drapes across the street.