A few days before Christmas last year, Alvaro Silberstein made history as the first disabled person to explore Torres del Paine National Park - with the aid of a very special wheelchair.
There are plenty of thrilling multi-day hikes in Patagonia, and the advice for eating on the trail is clear: You should be snacking every two hours to keep your energy levels high. But the guidance on exactly what you should be eating can be confusing. Is trail mix the ideal trekking treat or just a sugary, fat-filled snack posing as health food? Does dried fruit beat fresh fruit by taking up less space or does it contain hidden sugars and fats? And is there anything wrong with eating a high fat diet when hiking anyway?