There is a whole genre of funny travel writers - that's very popular. There's Bill Bryson and people who follow that route and sell travel writing through making people laugh. It's a very difficult group to take. The line between comedy and mockery is sometimes a bit thin.

I am sure you have met diplomats; they probably travel far less than you do. Okay, they get to know a place very intensely - sometimes only the capitol city.

I have a nice little idea from some people I met there who are now in their seventies, and I want to tell their story about the revolution through the eyes of musicians, in fact. The '59 Revolution. And what has happened to them since. It's very much a Cuban story. They haven't fared too well.

I'll always love Paraguay. It's this most exotic place configured out of the imagination, the whole country.Paraguay will always be a special place in my heart. I go back a long way. I first arrived as a refugee in 1982 from the Falklands War. So it was a safe haven then, and it has become something exotic since then. I feel like I'd like the dust to settle a little bit before going back.

India, to some extent, courses through my blood. My father was brought up there, and my grandfather served there, and so on. We have a very strong family affinity for the place.

It is a gift, and you realize as soon as you cross the border into Paraguay, as I did, the first time in '82, that you are in a sort of wonderland. Nothing is quite right: the buildings, they've got their own architecture, their own language; and everything is just a little bit off key.

There is a very big difference between American and British travel journalism, and that's this whole business of the assisted or freebie trip. In Britain we are unashamed about any travel company paying for you to go and then writing about it. That's the only way we can do it. But I have tried the same in the States, and I can't write for any sizeable American newspaper because they tell you to do it on this basis.