What makes an expedition worthwhile or indeed an expedition at all? Must it be a first ascent? First descent? Must it be punishing? Death-defying? Fact-finding? Science based? A fun time with your mates? Don't ask me...I keep changing my mind!

Making a full, human powered, source to sea descent of the Amazon River was hella fun! It was (at least to us) an epic! In my biased opinion it earnt it's stripes. A solo walk across Iran? My life was never in danger in the same way as on the big river but it was a tough slog all the same. I met some amazing people and hopefully have revealed something more of this hidden country. First? I doubt it, but in modern times and amongst my peers, I reckon a unique journey. Of course, I would say that.

But, what makes an expedition count? Does travelling to every country in the world without using planes qualify? Ben Fogle and James Cracknell's Race to the Pole? The Patagonia 180 South journey? I have my own views on 2 of these undertakings. They, to me, just don't belong, yet, the media and public interest they generate would suggest otherwise!

Can you guess which one I reckon takes the cake? Do YOU have a criteria? Is it possible to qualify? Does anyone have the right to make such a call?