Sir David Attenborough

Kirsty Young's castaway for the 70th anniversary edition of Desert Island Discs is Sir David Attenborough.

He has seen more of the world than anyone else who has ever lived - he's visited the north and south poles and witnessed most of the life in-between - from the birds in the canopies of tropical rainforests to giant earthworms in Australia.

But despite his extraordinary travels, there is one part of the globe that's eluded him. As a young man and a keen rock-climber, he yearned to conquer the highest peak in the world. "I won't make it now - I won't make it to base camp now - but as a teenager, I thought that the only thing a red-blooded Englishman really should do was to climb Everest."

Producer: Leanne Buckle.