Speleology to cave science in the world. The growth of speleology is directly linked with that of the sport of caving, both because of the stimulation of public interest and awareness, and the fact that most speleological field-work has been conducted by sport cavers. The creation of an accurate, detailed map is one of the most common technical activities undertaken within a cave. Cave maps, called "surveys", can be used to compare caves to each other by length, depth and volume, may reveal clues on speleogenesis, provide a spatial reference for further scientific study, and assist visitors with route-finding. Caves provide
European and American voyages of scientific exploration explore the Kerguelen Islands in 1840, and then on Tasmania to build a magnetic observatory for the Antarctic and to conduct cartographic work. Mount Erebus and the Ross Sea were discovered during this journey. After three attempts, Ross admitted that the magnetic pole lay in land that he could not reach. Following the footsteps of his uncle John Ross, he performed the first deep sea surveys up to 4800 m (2677 fathoms), using ropes. Unfortunately biological specimens collected decomposed. A scientific exploration in the China Sea and Indian Ocean. During the early to mid-1840s, charted numerous trade and other routes