Waterfall in the ice of Potter glacier, Tierra del Fuego, Chile, South America

Mountain landscape on Kilimanjaro, 5895 metres, UNESCO, highest mountain in Africa and one of the Seven Summits, Tanzania

View of snow covered Aosta Valley from Pavillon du Mont Frety in winter, Courmayeur, Aosta Valley, Italian Alps, Italy

View of snow covered Aosta Valley and mountains from Pavillon du Mont Frety in winter, Courmayeur, Aosta Valley, Italian Alps, Italy

Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

View of snow covered Aosta Valley and mountains from Pavillon du Mont Frety in winter, Courmayeur, Aosta Valley, Italian Alps, Italy

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

View of geysers at Geysir Hot Springs in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

Pack Ice Type B killer whales (Orcinus orca), finding a leopard seal (Hydrurga leptonyx), on an ice floe in Antarctica, Polar Regions

Aerial of the curvy Pia glacier, Tierra del Fuego, Chile, South America

Mountainous fjord, Kulusuk, Greenland, Denmark, Polar Regions

Ice detail, River Etive, Rannoch Moor, Highland, Scotland, United Kingdom

A view of ice-covered Phippsoya, the largest of the Sjuoyane Islands in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

Adult polar bear (Ursus maritimus) in Holmabukta on the northwest coast of Spitsbergen in the Svalbard Archipelago, Norway

Two mother polar bears (Ursus maritimus) with cubs of the year watch a male bear feeding on a fin whale carcass in Svalbard, Norway

Young curious female polar bear (Ursus maritimus), on fast ice near Hinlopen Strait in the Svalbard Archipelago, Norway

Aerial of a glacier, Kulusuk, Greenland, Denmark, Polar Regions

Expedition zodiacs, Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Views of Gold Harbor on South Georgia Island, Southern Ocean

Buachaille Etive Mor and River Etive, Rannoch Moor, Highland, Scotland, United Kingdom

The Wang ski run, Gotschnagrat near Klosters in Switzerland

Snowmobile sunset tour with Arctic Lifestyle, Rovaniemi, Lapland, Finland.

Snowmobile sunset tour with Arctic Lifestyle, Rovaniemi, Lapland, Finland.

Sled dogs are guided through difficult terrain. Inuit hunter wearing traditional trousers and boots made from polar bear fur on the sea ice of the Melville Bay near Kullorsuaq in North Greenland. North America, danish teritorry