A guidebook to the GR54 trek around the Ecrins national park, the Tour of the Oisans. The 176km route is described clockwise from Bourg d'Oisans and is one of Europe's toughest treks. The Tour is split into 10 day stages with suggestions for a 13-day itinerary and alternative stages. For experienced Alpine trekkers, some exposure. ukryj opis