A man in Alberta, Canada, stands on frozen lake surface with bubbles of methane trapped in the ice
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An illuminated ice castle during the Harbin International Ice and Snow Sculpture Festival in Harbin, China
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Exploring Greenland’s bediaires and moulins
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Snow in the Sahara Desert, Algeria
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A man rides a cart over the frozen ‘Lake Cildir’ in Aradahan Province of Turkey
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Expedition members ski the Akshayuk Pass, in Auyuittuq National Park on Baffin Island, Canada
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Johanna Nordblad, 42, Finnish freediver swims under ice during a Ice-freediving training session in Somero, Finland
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Climbers climb a cylindrical ice cave, France
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Men, surrounded by seagulls, are ice-fishing at midday on the barely frozen Bothnia Sea, Western Finland
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An ice climber ascends a frozen waterfall in Dagestan, Russia, during an ice climbing competition
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Ice collects on the Chicago river on 3 January 2018.
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A woman jumps into a pool dug in the frozen river at Beiling Park in Shenyang, China
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Los Glaciares National Park, Argentina
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