The journey begins in Pont-Saint-Martin and immediately climbs through the terraces of the Vallaise, an ancient medieval feud that included Perloz, Lillianes and Fontainemore, and then climbs to high altitude in the Nature Reserve of Mont Mars interweaving secular routes of faith. From here, along high-altitude paths where wild nature dominates the landscape, you enter the land of the Walser, the Germanic ethnic group that colonized these high lands in the Middle Ages from the Swiss Valais. From Issime to Gressoney-La-Trinité, passing through Gaby and Gressoney-Saint-Jean, the route is a succession of ancient villages made of stone and wood, conifer woods and green pastures which Monte Rosa never ceases to provide an exceptional setting for.

Sentieri del Lys (Lys Paths) is an initiative born from a group of tour operators with passion for the mountains and a strong sense of welcome who have come together to promote and enhance the territory through a sustainable tourism project.
The Barma Refuge is a stopover on this route for hikers and mountain lovers of any age, in groups or individually.