#‎Discovery‬ ‪#‎KangarooIsland‬ is Australia's third-largest island, after Tasmania and Melville Island. It lies in the state of South Australia 112 km southwest of Adelaide. Its closest point to the mainland is Snapper Point in Backstair Passage which is 13.5 km from the Fleurieu Peninsula.The Island is 150 km long and between 90 km and 57 km wide, its area covering 4,405 km2. Its coastline is 540 kilometers (340 mi) long and highest point is Mount McDonnell at 299 m above sea level. It is separated from Yorker Peninsula to the northwest by Investigator Strait and from Fleurieu Peninsula to the northeast by Backstairs Passage. A group of islets, the Pages, lie off the eastern end of the island.