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Prince Harry tests an arctic immersion suit on the island of Spitsbergen, Norway

David Cheskin / Getty Images

Walking with the Wounded team members try out immersion suits on the island of Spitsbergen, situated between the Norwegian mainland and the North Pole, during the last days of preparation before setting off to the North Pole on foot, on March 30, in Spitsbergen, Norway.

David Cheskin / AP

Britain's Prince Harry tries out an immersion suit, during training for the Walking with the Wounded expedition, on the island of Spitsbergen, situated between the Norwegian mainland and the North Pole, on March 30. The third in line to the British throne will train for three days before accompanying the team on the first five days of their four-week expedition.

David Cheskin / AP

Britain's Prince Harry reacts as he tries out an immersion suit, during training for the Walking with the Wounded expedition, on the island of Spitsbergen, situated between the Norwegian mainland and the North Pole, Wednesday, March 30. The third in line to the British throne will train for three days before accompanying the team on the first five days of their four-week expedition.

David Cheskin/ Getty Images

Prince Harry, part of the Walking with the Wounded expedition team, tries out an immersion suit on the island of Spitsbergen, situated between the Norwegian mainland and the North Pole, during the last days of preparation before setting off to the North Pole on foot, on March 30 in Spitsbergen, Norway.