Crevasses: a hidden danger in Antarctica
Out in the field, with a beautiful wind-sculpted snowy landscape behind him, Alain Hubert shows the viewer a massive crevasse. He explains the risks crevasses pose when travelling across the ice sheet in Antarctica, as well as how to recognise them and cross them without falling in.
In order to avoid the larger, more dangerous ones - especially in low visibility conditions like a white-out - Alain and field guides spend a lot of their time doing reconnaissance work.
Along their way, they mark all the dangerous crevasse zones close to widely used routes with highly visible red flags mounted on bamboo sticks.
Video: © International Polar Foundation