South Georgia Island isn't the kind of destination you just 'pop round' to. This tundra-clad outcrop of permafrost and penguins lies within an extremely isolated island chain in the Southern Ocean.

For five months Karl Gorokhov has tracked his ancient prey across a desolate island in the East Siberian Sea, slogging 18 hours a day over the icy tundra. He is cold and exhausted, with a hunger ...

These remote national parks in the high Arctic of Nunavut's Baffin Island feature jagged, frosted mountain ranges, traditional Inuit villages, glacier-carved fjords, and vast, uninhabited tundra.