Greenland is the world’s largest island. It has about 25,000 miles of coastline to explore during a tour of the region, or roughly the distance of the Earth’s circumference at the Equator. Almost 81% of the island is ice-capped (covered by the Greenland ice sheet), making it practically uninhabitable in most of the region excluding the narrow, mountainous, rocky coast. Many travelers are surprised to learn that Greenland is roughly equal to three times the size of Texas. Towns and settlements are found only along the coastlines, with the majority along the west coast. The northern part of Greenland, or Peary Land, is not covered by an ice sheet; the air is too dry to produce the necessary precipitation. Scientists have calculated that if the Greenland ice sheet were to melt completely, then sea levels would rise more than 23 feet and Greenland would most likely become an archipelago. The highest elevation point on Greenland is Gunnbjom at 12,139 ft.