 The expedition had both scientific and exploration objectives; the latter included a long journey south, in the direction of the South Pole. This march, undertaken by Scott, Ernest Shackleton and Edward Wilson, took them to a latitude of 82°17 ′ S, about 530 miles (850 km) from the pole. A harrowing return journey brought about Shackleton's physical collapse and his early departure from the expedition. The second year showed improvements in technique and achievement, culminating in Scott's western journey which led to the discovery of the Polar Plateau. This has been described by one writer as "one of the great polar journeys". The scientific results of the expedition included important biological, zoological and geological findings. Some of the meteorological and magnetic readings, however, were later criticised as amateurish and inaccurate.
