Kangaroo Island is the third largest island in Australia, after Tasmania Island and Melville Island. It is 112 km southwest of Adelaide (Australia), at the entrance to the Gulf of St. Vincent. Its closest point to the mainland is 13 km from Cape Jervis, at the tip of the Fleurieu Peninsula, in the state of South Australia. The island is 150 km long and between 900 m and 57 km wide; It covers an area of 4,405 km² and has 540 km of coastline, its highest point being Prospect Hill, at 307 m. It is separated from Yorke Peninsula to the northwest by the waters of Investigator Strait and Cape Jervis to the north by Backstairs Passage.The largest town on Kangaroo Island is Kingscote, which It was originally founded on 27 July 1836, and was the first European settlement in South Australia.It was later suggested that Kingscote could serve as the capital of South Australia, but the island's resources They were not enough to accommodate this large community, and Adelaide was then chosen.Penneshaw, the second largest city on Kangaroo Island, has a population of around 300 inhabitants. and is located at the northern end of the Dudley Peninsula, at the eastern end of the island.