Sam Benastick, 20, discovered shivering and unsteady by two oil workers after getting lost in British Columbia wild

He returned as a ghostly apparition on a forestry road in western Canada, moving slowly and unsteadily with the help of a walking stick in each frostbitten hand. A cut-up sleeping bag was wrapped around his legs, shielding them from the bitter cold.

The two oil and gas workers, who had spent the previous week surveying the trail, stared dumbfounded. When they took the sticks from his hands to help him into their truck, he nearly collapsed.