What is the answer for the question: What was seen as the only realistic option? from the following article ? The arrival of the James Caird at King Haakon Bay was followed by a period of rest and recuperation, while Shackleton pondered the next move. The populated whaling stations of South Georgia lay on the northern coast. To reach them would mean either another boat journey around the island, or a land crossing through its unexplored interior. The condition of the James Caird, and the physical state of the party, particularly Vincent and McNish, meant that the crossing was the only realistic option.After five days, the party took the boat a short distance eastwards, to the head of a deep bay which would be the starting point for the crossing. Shackleton, Worsley and Crean would undertake the land journey, the others remaining at what they christened "Peggotty Camp", to be picked up later after help had been obtained from the whaling stations. A storm on 18 May delayed their start, but by two o'clock the following morning the weather was clear and calm, and an hour later the crossing party set out.. Their destination was the whaling station at Stromness which had been the last port of call of the Endurance on their outbound journey. This was roughly 26 miles (42km) away across the edge of the Allardyce Range of mountains. Another whaling station was known to be at Prince Olav Harbour, just six miles (10km) north of Peggotty Camp over easier terrain, but as far as the party was aware this was only inhabited during the summer months - Shackleton and his men did not know that during their two-year absence in Antarctica the station's owners had begun year-round operationsWithout a map, the route they chose was largely conjectural. By dawn they had ascended to 3,000 feet (910 m) and could see the northern coast. They were above Possession Bay, which meant they would need to move eastward to reach Stromness. This meant the first of several backtrackings that would extend the journey and frustrate the men. At the close of that first day, needing to descend to the valley below them before nightfall, they risked everything...
Answer:
a land crossing