The Queen and the Duke of Edinburgh have braved heavy rain and driving winds to name a spectacular million-pound row barge built to mark the Diamond Jubilee.

The royal couple descended a gangway at Greenland Pier on the Thames in London's Docklands before going on board the Gloriana.

The 94-foot vessel, decorated with gold leaf and ornately carved, harks back 200 years to when kings and queens travelled by water in opulent style.

It will be one of the star attractions in this summer's Thames Diamond Jubilee Pageant - a 1,000-strong flotilla of boats with the Queen and the Duke travelling at its heart.

The Queen was warmly dressed in a deep red coat and matching hat but the Duke, though wearing a raincoat, was bare headed. At one point he could be heard advising the Queen to keep under cover after she had been to inspect the stern of the boat, which bears royal symbols and the vessel's name.

Lord Sterling, who organised public celebrations for the Queen's Golden Jubilee in 2002, and is behind the project, thanked them for attending.

"It's very much appreciated, in this inclement weather, that you have troubled to come," he said.

He told reporters: "The barge is looking very special. It will be a lasting legacy of the Queen's Diamond Jubilee."