Roald Amundsen through the Northwest Passage with Gjøa 

THE GJØA EXPEDITION (1903-1906)
Roald Amundsen’s expedition with the Gjøa was the first to navigate the Northwest Passage north of the Canadian mainland on one expedition and one ship. In 1903-06 Amundsen accomplished this with six companions. Two years were spent on the way in Gjoa Haven when the then-location of the North Magnetic Pole was established, proving that the Magnetic Pole moves over time.