BROADCASTER and keen sailor David Dimbleby will fire the starting cannon for this year's Round the Island Race – before jumping onboard a boat and competing himself.

The Question Time presenter will start the historic 50-mile race around the Isle of Wight at 6.30am on June 21.

He will then join his son, Fred, on a 65ft yacht alongside the race's 16,000 competitors.

Despite being a keen amateur yachtsman, Dimbleby has only competed in the Round the Island Race once before, in the 1960s.