Sadie trains for Patrouille des Glaciers

Sadie is training to compete in the Patrouille des Glaciers, the ultimate ski mountaineering race, alongside Royal Marines. Her trainer is SAS Colonel Bernie Shrosbree, whose former clients include Ben Fogle and Olympic Champion James Kracknell. The tournament, which takes place over the summits of the Swiss Pennine Alps, is being filmed for a TV documentary produced by Diverse Television.