Once the travel bug bites there is no known antidote, and I know that I shall be happily infected until the end of my life

Night falls over Machu Picchu to the sound of Abba's 'Dancing Queen'.

Of course I would do it again, but I know it would never be quite the same. Despite the best laid plans of the BBC, we ended up bustling, hurrying, rushing, improvising to get ourselves home only by the skin of our teeth. And that's what made it worth doing. The smoother the journey the duller it would have been.

My philosophy of travel, such as it is, is that the more difficult somewhere is to get to, the greater the prize to be won by getting there. But when the prize was North Korea, I found this was not a view shared by my wife.