I had booked this company to provide the expertise for the Via Feretta and a mountain hike for my Geography trip of 3 teachers and 23 students. The owner Franck was very keen to work with the school and we constantly exchanged emails about the trip and the potential problems of the railway line being closed. When we got to the Via Feretta in Passy it was closed but Franck and his 3 guides were able to come up with a Plan B. We went to a local outdoor climbing centre and the students either went for a mountain hike or did some rock climbing and abseiling. Franck even created a mini Via Feretta to give the students a flavour of what they missed. Very adapatable and friendly group who I recommend for any group to work with.