I miss him still today: his long, whiskery eyebrows, his huge hands and hugs, his warmth, his prayers, his stories, but above all his shining example of how to live and how to die.

As a young boy, scouting gave me a confidence and camaraderie that is hard to find in modern life.

Nobody wants to end up super rich and famous - but divorced. I'm always clear on that and try to stay on the right side of the line.

I've fallen down crevasses, been bitten by snakes, been knocked unconscious, had various limbs broken and once, a heavy camera came plunging down which very nearly decapitated me.

My best life lessons and education didn't come from a classroom - they've come from the wild. How you act in the big moments, the ones that challenge you, scare you, tempt you, and force you to make the right decisions, is what defines you.

My Christian faith is my backbone

To get ready to climb Everest, I did a lot of hill running with a daypack on and a lot of underwater swimming. I would swim a couple of lengths underwater and then a couple above. It gets your body going with limited oxygen.