The castaway in Desert Island Discs this week is a writer, a traveller and an advisor to a Prince and Prime Minister.

Now nearly 90, he'll be talking to Sue Lawley about his early years in South Africa, his incarceration as a Japanese prisoner-of-war and his life-long campaign to save the bushmen of the Kalahari Desert.

[Taken from the original programme material for this archive edition of Desert Island Discs]

Favourite track: Piano Sonata No. 17 in Dm 'Tempest' by Ludwig van Beethoven