With the loss of Endurance the transcontinental plans were abandoned, and the focus shifted to that of survival. Shackleton's intention now was to march the crew westward, to one or other of several possible destinations. His first thought was for Paulet Island, where he knew there was a hut containing a substantial food depot, because he had ordered it 12 years earlier while organising relief for Otto Nordenskjöld's stranded Swedish expedition.[55] Other possibilities were Snow Hill Island, which had been Nordenskiöld's winter quarters and which was believed to contain a stock of emergency supplies,[56] or Robertson Island.[57] Shackleton believed that from one of these islands they would be able to reach and cross Graham Land and get to the whaling outposts in Wilhelmina Bay.[56] He calculated that on the day Endurance was abandoned they were 346 miles (557 km) from Paulet Island.[55] Worsley calculated the distance to Snow Hill Island to be 312 miles (500 km), with a further 120 miles (190 km) to Wilhelmina Bay.[56] He believed the march was too risky; they should wait until the ice carried them to open water, and then escape in the boats.