Ka kammala wannan magana: Bayan da Roald Amundsen ya ci Kudu a watan Disamba na shekara ta 1911, Shackleton, wanda shi da kansa ya yi ƙoƙari ya cim ma wannan burin, ya sake tunani game da burinsa na zuwa Kudancin Duniya. Ya yi imanin cewa har yanzu akwai "babbar manufa guda ɗaya ta tafiye-tafiye zuwa Antarctic - ƙetare nahiyar Kudancin Kudancin daga teku zuwa teku". Shackleton ya yi amfani da shirin da wani mai bincike na ƙasar Scotland mai suna William Spiers Bruce ya tsara, ya shirya ya kai rundunarsa zuwa kudanci, wato, gaɓar tekun Weddell. Daga nan sai tawagarsa ta ƙetare nahiyar za ta yi tafiya zuwa kudu zuwa iyakar duniya, kafin ta ci gaba a kan iyakar iyakar duniya kuma ta sauko ta hanyar Beardmore Glacier (wanda Shackleton ya yi
An gano shi a 1909) zuwa Babban Ganuwar Ice. Yankin karshe zai kai su a ƙetaren Barrier zuwa McMurdo Sound a gabar tekun Ross Sea.