name those three expeditions.
"Discovery" expedition, "Nimrod" expedition and the Imperial Trans-Antarctic Expedition.
Ernest Shackleton
Shackleton's first experience of the polar regions was as third officer on Captain Robert Falcon Scott's "Discovery" expedition of 1901–1904, from which he was sent home early on health grounds, after he and his companions Scott and Edward Adrian Wilson set a new southern record by marching to latitude 82°S. During the "Nimrod" expedition of 1907–1909, 
is james caird a ship who voyaged in the sea? Yes. who designed it? Harry McNish, strengthened and adapted the boat to withstand the seas of the Southern Ocean. on what date did the boat first start its journey in the sea? 24 April 1916. which place did it start? Elephant Island. in which region/continent is that a part of? Antarctica. how many people were in that vessel? 6. can you name a few of them? Shackleton, Worsley and Crean. name a few water bodies in which it sailed? The Drake Passage. can you tell me something about the first person you mentioned previously? Sir Ernest Henry Shackleton was an Irish Antarctic explorer who led three British expeditions to the Antarctic.
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Ernest Shackleton [SEP] Introduction
Sir Ernest Henry Shackleton (; 15 February 1874 – 5 January 1922) was an Irish Antarctic explorer who led three British expeditions to the Antarctic. He was one of the principal figures of the period known as the Heroic Age of Antarctic Exploration. Shackleton's first experience of the polar regions was as third officer on Captain Robert Falcon Scott's "Discovery" expedition of 1901–1904, from which he was sent home early on health grounds, after he and his companions Scott and Edward Adrian Wilson set a new southern record by marching to latitude 82°S. During the "Nimrod" expedition of 1907–1909, he and three companions established a new record Farthest South latitude at 88°S, only 97 geographical miles (112 statute miles or 180 kilometres) from the South Pole, the largest advance to the pole in exploration history.