'It started with a flyer in the lobby of our hotel in La Paz: "Mountain-bike the most dangerous road in the world," it said. "A spectacular 38-mile ride, descending more than 11,800ft from the Andean mountains into the Amazonian jungle". To a group of climbers with a spare day before our departure from Bolivia, it sounded the perfect way to end our trip.'

Read on about this curious road on which up to 200 people die each year.