The road out of Caloto winds through a lush valley dotted with fields of grazing cows, then into hills past a patchwork of pineapple farms, small pockets of virgin rainforest and the startlingly vivid green of coca plantations.
This valley in the foothills of the northern Andes looks deceptively calm on an early winter afternoon, but it sits in one of the most dangerous regions in Colombia, particularly for children.
