Puerto Natales, Chile
How hard can trekking the Torres de Paine be, we asked ourselves, if there's no organised tours. I mean honestly if something's more strenuous or complex than opening an envelope, there's someone making a buck by organising a tour in South America. So we hired our camping equipment, stocked up on food and happily set off on our adventure. We'd canvassed those in the know about suitable footwear and everyone had agreed our trainers were fine for the task. Agai...