
 |  |  |  | Nick and Guy, Salt Flats, Bolivia |
 |  |  |  | Nick on a rope bridge, Peru |
 |  |  |  | Natali trekking in Bolivia |
|  |  Nick's journey

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 The last time Nick Lopez Green, this week's columnist, came on the programme, he was working in a kiosk on Palmers Green Railway station, saving up for a gap year tour of South America before starting his degree.
Nick's mum is Columbian - so he had a yen to travel around his other home continent, a yen that has now been amply satisfied...
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