A computer generated image of The Spirit of Chartwell
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Huge crowds expected to attend Jubilee pageant

17 May 2012 Last updated at 19:29 BST

The Duke and Duchess of Cambridge will join the Queen on the Royal barge during the Thames pageant to celebrate her Diamond Jubilee.

More than a million people are expected to line the banks, bridges and parks along the river to see a flotilla of 1000 ships, boats and other vessels.

Philippa Thomas reports.