That's all folks (by Joe and Laura)

First thing tomorrow we head off to Buenos Aires airport to fly home, so this may be the very final posting of Joe and Laura's Big Trip.

The trip has been a wonderful experience and, though we're looking forward to seeing friends and family, after so much time in so many fascinating and beautiful places, it'll doubtless be tricky to go back to life in busy, polluted, stressful London.

Yet through that, we must remember that London, for all its downsides, is one of the world's greatest cities. Compared to the vast majority of the world we've seen, it is a city of incredible wealth, incredible choice, and incredible opportunity. We must count ourselves lucky.

To finish the blog we wanted to post a brief note of thanks to everyone who's been reading it, e-mailing us with comments or otherwise supporting us along the way.

Throughout the trip it has made a real difference to us to know that people back home have been following our travels and thinking about us.

Simply: many thanks to all.

Adiós, amigos …

Joe and Laura