Farthest North 1948. On , a US Navy submarine, also named , was the first to sail under the ice pack to reach the North Pole. On , the became the first submarine to surface at the North Pole. In 1968, British explorer Sir Wally Herbert became the first person to indubitably reach the Pole on foot, having sledged from Alaska. His expedition was supported by air drops. Farthest North Farthest North describes the most northerly latitude reached by explorers before the conquest of the North Pole rendered the expression obsolete. The Arctic polar regions are much more accessible than those of
Pole to Pole was to follow the 30 degree east line of longitude, which would cover the most land. A last-minute diversion to Chile included South America in the series. Using aircraft as little as possible, the whole trip lasted 5½ months. The programme has been sold to many television stations around the world. It was also released on video tape and later on DVD. Following the trip Michael Palin wrote "Pole to Pole" describing the trip. The book contains many pictures from the trip, almost all taken by Basil Pao, the stills photographer on the team. Palin begins at the North Pole,