On the border between Argentina and Chile, Katia Lafaille, widow of the mountaineer Jean-Christophe Lafaille, sets out on one of the hardest treks in...

Daulagiri (8167m), Naga Parbat (8125m) and Broad Peak (8051m) are among the 14 peaks in the world. Jean-Christophe Lafaille has set himself the goal...