Here's one way to boost tourism at winter resorts. Pretty ski and snowboard instructors have stripped off for a winter calendar. The models, including snowboard teacher and two times world cup race winner Julia Dujmovits, 25, forgo their usual thermal layers to pose in the cold temperatures. The pictures were shot by Hubertus von Hohenlohe who said he travelled to 'the best skiing hotspots in the world' to create the calendar under the artistic direction of Thomas Ebster. Ski instructors forgo their usual attire to pose for a calendar.