Voyage to the Bottom of the Sea the Atlantic via the North Pole. On August 3, 1958, she became the first ship to reach the North Pole. For this accomplishment, "Nautilus" and her crew were awarded the Presidential Unit Citation, the first Presidential Unit Citation awarded in peacetime. The citation began with the words, "For outstanding achievement in completing the first voyage in history across the top of the world, by cruising under the Arctic ice cap from the Bering Strait to the Greenland Sea." "Nautilus 90 North" (1959, with Clay Blair) was the first book Anderson wrote about the Arctic missions of USS "Nautilus". It was
Pole to Pole flying there on a small aeroplane fitted with skis. The North Pole scene was filmed in May 1992, after the rest of the series had been shot, as weather conditions were more suitable then as the ice was too fragile the previous year. From there, he heads to Greenland, then the Norwegian island of Spitsbergen, where the towns of Ny Ålesund and Longyearbyen are located. From there he sails across the Barents Sea on a supply ship to the Norwegian port city of Tromsø, where he visits a statue of Roald Amundsen, the first man to reach the South Pole.