First attempt, 8th September 1911:
Amundsen was concerned by the idea that Scott's motor sledges would allow him to reach the pole first and wanted to set off as soon as possible after the sun rose again in late August. Against the advice of Johansen that it was too cold, he set off on the 8th of September 1911 with eight of the nine men on his expedition. Day time travel was good and they made very good progress in the first few days despite very cold temperatures, it was so cold at night however that they could hardly sleep and some of the dogs suffered from frostbitten paws. By the 12th of September with temperatures of -56C they stopped and built igloos for shelter before returning to the ship to try again later. Some of the dogs froze to death on the way back, others too weak to run were placed on the sledges, Amundsen ordered his men to push for home as soon as possible rather than travelling as a group. Amundsen and two others arrived back first after nine hours, another sledge two hours later and the final two including Johansen over seventeen hours after setting off. Johansen answered Amundsen's question about why they had been so late angrily, feeling they had been abandoned without food or fuel and suffering from frostbite. Amundsen later reported that he felt Johansen was "violently subordinate" and excluded him from the South Pole party.
Second attempt, 19th October 1911:
Amundsen set out again with five men, four sledges and fifty two dogs. Once again they made good progress, though Amundsen deliberately avoided the Beardmore Glacier route that Scott would take to get from the near sea-level ice shelf and onto the Antarctic Plateau, he found a steep and difficult but direct route up a small glacier he named after Axel Heiberg, one of his financial backers. seven of his dogs had died on the ice barrier to reach the glacier, all but a remaining eighteen were killed at the top of the glacier, the carcasses were eaten eagerly by the dogs and men alike, some were depoted to be picked up on the return journey. They reached the pole on the 14th of December 1911, 56 days after setting off.
They stayed in the vicinity of the pole before setting off on their return journey on the 18th. During this time, they took navigational readings at different times of the day and travelled in the vicinity to make sure they really had reached the South Pole. Amundsen left a tent and a letter addressed to the King of Norway with a request to Scott to deliver it. They arrived back at the Fram on the 25th of January 1912, just 38 days after leaving the south pole. The whole trip had taken 99 days, 10 less than anticipated, they had covered 3,440km (1,860 nautical miles), five men and fifty two dogs had set off, five men and eleven dogs had returned.