The book took place primarily on an island in the Pacific Ocean.
Treasure Island E-Text contains the full text of Treasure Island
It is interesting that these men do not respect Ben Gunn at all. As soon as they here that it is his voice, they are no longer extremely frightened and instead treat him like a buffoon. Ben Gunn, however, is much smarter and more resourceful than any of his former comrades give him credit. He was able to not only survive on the island for three years, but was also smart enough to both move the treasure and help the "good" guys eventually triumph.
Treasure Island, Robert Louis Stevenson - Essay - …
At the beginning of the chapter, the men describe the view of the island, including the Cape of Woods in front of them, Skeleton Island behind them, Spy-glass above them - and the sea in different directions. This description is important to the entire chapter because it increases the sense of isolation and highlights the fact that Jim and the men are trapped on an island, in the sea. There is no escape for these men. They must fight it out to the end. The mood of solitude is enhanced by the fact that the only sounds on the island are the men's whispering voices and the distant sound of the surf.