Less than a meter of ice is separating us from another world. The water is clear in winter, sunlight passes through the snow and ice, and the rich underwater life contrasts with the apparent white desert at the surface. Diving into water at -2°C, when it is -30°C outside, represents some constraints, but the show is unforgettable. It's mostly a chance to follow Charlie, one of the few divers in Nunavut collecting clams for a living, and to enjoy his warm shelter above the hole!

More news in pictures; see also Leonie's blog and album.