© Licensed to London News Pictures. 20/10/2016. Bristol, UK. Explorer David Hempleman-Adams (yellow sailing jacket) with Ben Edwards (age 14 from Cambridge) and crew arrive back in Bristol docks after their Arctic voyage, after becoming the first British crew to circumnavigate the North Pole in a single season. They left Bristol in June onboard the polar exploration yacht Northabout and completed the 14,000 miles (22,500km) voyage through the Northeast and Northwest passages in just four months.<br /> The challenge has only recently become possible due to retreating sea ice. Photo credit : Simon Chapman/LNP
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