updated 06/03/2012 AT 11:00 AM ET
•originally published 06/03/2012 AT 12:55 PM ET
In a spectacular display of royal pageantry, Queen Elizabeth was feted at a special river-born celebration Sunday when she and her family rode down the Thames through London.
In a scale that hasn’t been seen for around 350 years, more than 1,000 boats created a magical flotilla along the river – with the Queen, 86, at its heart. She took her place on the 210-ft. Spirit of Chartwell royal barge, which was given a makeover and bedecked with 10,000 roses, carnations, sweet peas and red charm peonies for the cruise – the centerpiece of her Diamond Jubilee.
William, 29, donned his RAF Flight Lieutenant No. 1 Dress Uniform complete with blue garter sash, while his brother Prince Harry, a Captain in the British Army, was wearing the No 1 Ceremonial dress of the Blues and Royals and Army Air Corps light blue beret. Kate wore a striking red Alexander McQueen outfit with matching hat by Sylvia Fletcher from James Lock and Co.