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.

I cut down trees, I skip and jump, I like to press wild flowers. I put on women's clothing and hang around in bars.

I don't see why it should be remarkable that you can acquire a reputation for fairness and decency. Those are qualities shared by so many people. And the great majority of people I meet are decent people, just trying to navigate their way through the world without causing too much trouble.

It's not an easy option. The essence of travel is letting go of habit and prejudice and relishing the unfamiliar. Food you've never eaten before, a language you've never spoken before, religion that mystifies, customs that confuse, politics that perplex, all question everyday assumptions about how you live your life.

I know that we shall meet problems along the way, but I'd far rather see for myself what's going on in the world outside, than rely on newspapers, television, politicians and religious leaders to tell me what I should be thinking.

John Hall, my geography teacher at school inspired me to a lifelong interest in geography and a curiosity about our world which has stayed with me through my life. Geography is a living, breathing subject, constantly adapting itself to change. It is dynamic and relevant. For me geography is a great adventure with a purpose.

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.