This ultra-exclusive camp (only four tents) lies in the Okavango Delta, a 17, 000-square-mile labyrinth of lagoons, hummocks, channels, and islands in northwest Botswana.

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The backbone of this would-be tourism boom is nature-viewing safaris to places like Chobe National Park, the Okavango Delta and the vast Kalahari Desert.

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Uniquely for the Okavango, and presumably thanks to the personal intervention of Allen, the latter provides a reliable Internet connection, and hence phone calls via Skype.

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As at most camps in the Okavango, game-viewing at Abu is by customized safari vehicle, or, at the time of the annual flood, by makoro (local dugout canoe).

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Ultimately, an experience like a stay in a Kyoto ryokan is very much like a stay in an upscale lodge in the Okavango delta: a total experience for the mind and the senses.

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It's also irrepressibly public-spirited, people shaking hands on the street are, apparently, "saying I love you" - illustrated in the Attenborough video, oddly, by two hippopotamuses fighting each other in the Okavango river.

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