Last Updated 9:15 a.m. ET June 4, 2012
(AP) LONDON - The River Thames became a royal highway Sunday, as Queen Elizabeth II led a motley but majestic flotilla of more than 1,000 vessels in a waterborne pageant to mark her Diamond Jubilee.
In a colorful salute to the island nation's maritime past, an armada of skiffs and sailboats, rowboats and paddle steamers joined a flower-festooned royal barge down a 7-mile stretch of London's river.
With a crowd of rain-soaked spectators estimated by organizers at 1.25 million cheering from the riverbanks, the pageant was the largest public event in four days of celebrations of the monarch's 60 years on the throne. On Monday, the queen will join thousands of revelers at an outdoor concert beside Buckingham Palace, headlined by pop royalty including Paul McCartney and Elton John.
With any luck, the weather will improve. Sunday was dismal and damp, with rain scuttling plans for a ceremonial fly past, but that didn't stop Union Jack-waving spectators forming a red, white and blue wave along the pageant route.
"It would have been wonderful if it had been sunny like last Sunday but we have come prepared," said 57-year-old Christine Steele. "We have got blankets, brollies (umbrellas), flags and bunting. We even got our glittery Union Jack hats and wigs, and the Champagne is on ice."
The 86-year-old queen wore a silver and white dress and matching coat - embroidered with gold, silver and ivory spots and embellished with Swarovski crystals to evoke the river - for her trip aboard the barge Spirit of Chartwell, decorated for the occasion in regal red, gold and purple velvet.
The queen's grandson, Prince William, and his wife, the Duchess of Cambridge - he in his Royal Air Force uniform, she in a red Alexander McQueen dress - and William's brother, Prince Harry, were among senior royals who joined the queen and her husband, Prince Philip.
After a celebratory peal of bells from a special belfry barge, the royal boat sailed downstream at a stately 4 knots (4.6 mph), accompanied by tugs, pleasure craft, narrow boats, kayaks, gondolas, dragon boats and even a replica Viking longboat.
Also in the flotilla were more than three dozen "Dunkirk Little Ships," private boats that rescued thousands of British soldiers from the beaches of France after the German invasion in 1940 - a defeat that became a major victory for wartime morale.
The vessels sailed past some of London's great landmarks - including the Houses of Parliament, the London Eye and St. Paul's Cathedral - before ending their journey near Tower Bridge. Downriver, sailing ships too tall to fit under London's bridges were moored along both banks of the river.
The queen traveled down a river transformed during her reign, from the commercial and industrial heart of London to a - much cleaner - playground for tourists and pleasure craft.
"CBS This Morning" co-host Erica Hill reported on the flotilla on the broadcast on Monday. To see her report, click on the video in the player above.