Eric and Sarah McNair-Landry — an adventurous brother-sister team from Baffin Island — grew up with the Arctic Ocean and sled dogs in their backyard. Both have trekked across the polar regions since they were teens. Last year, on a National Geographic Young Explorers grant, the two kite-skied over two thousand miles through Canada's arctic archipelago, fending off polar bears and coping with unfavorable winds and melting ice along the way. Videography by Sarah McNair-Landry & Eric McNair-Landry Map source: NASA events.nationalgeographic.com/events/speakers/2012/12/06/kite-skiing-northwest-passage/ www.nationalgeographic.com/explorers/bios/sarah-mcnair-landry/