Trekking through the Monte Rosa massif from Italy to Switzerland and back into Italy. Starting out from Gressonney we hiked over big glaciers over to Zermatt, passing the most astonishing peaks in the Monte Rosa/Zermatt region, including Liskamm, Dufourspitze and Matterhorn. From Zermatt we used to cable car to get to Klein Mattoerhorn, from where we continued our glacier trek over the Bretihorn plateau and ending up in the Ayas valley.