I've become quite a serious explorer: I've been to Everest three times; I'm the oldest man to reach the North Pole; and I've just been to the lost world of Venezuela.

I fed my yak on my spare Cadbury chocolate 21,0000ft up Everest. It was a blonde, very sweet female yak. I made it my pet after that.

When I was a child, I wanted to... go into space! To go to Mars. I wanted to explore and explore and explore. I wanted to go to the Lost World in South America - I was heartbroken to discover there were no dinosaurs; I still don't accept it.

You can't call it an adventure unless it's tinged with danger. The greatest danger in life, though, is not taking the adventure at all. To have the objective of a life of ease is death. I think we've all got to go after our own Everest.

An Expedition to the North Pole.

I love Scotland - I was made an honorary Wallace after my work on 'Braveheart,' you know. If I have two or three days off, I love nothing more than driving up there and climbing around Glencoe.