There are people who travel because they want to push themselves to physical limits, people who walk across deserts or cycle across the Antarctic - like Ranulph Fiennes, who just does it because it's there. And then there are people like me, who are just genuinely curious about the world.

You can't get a suit of armour and a rubber chicken just like that. You have to plan ahead.

There are many ways of seeing the world. You can hang upside down from a meteor, volunteer to be the fourth stage of a three-stage rocket, or simply get in a balloon and keep going. But if it's sheer, unadulterated discomfort you're looking for, just stay on land.

Now, what sort of person would write a scene where a young man stumbles upon a castle full only of beautiful young women? Answer: ME!

If I am seen as successful, it's all the more reason not to change - not to lose track of friends, not to be driven everywhere, not to go and get away from the world. That, to me, is real success: enjoying what you do, but being the same person.

I want people to know there is more to Somalia than looting and piracy.

I wanted to be an explorer, but gradually found the world had been explored and that there was nowhere left, really. Once they climbed Everest in 1953, when I was 10 years old, I thought, 'Well, that's pretty much it now.' But the idea of travelling and exploring and adventure was very strong.