Clipper race: Sir Robin Knox-Johnston on why it is special

The Clipper Round The World Yacht Race - the world's longest ocean race - begins in London later, and will feature 700 participants over its eight stages, covering 40,000 nautical miles.

The first leg, which launches at St Katharine Docks, will see teams travel 6,000 miles to Brazil's Rio De Janeiro.

The race founder, Sir Robin Knox-Johnston, told BBC News why it is so special.

  • UK