Langkawi, a cluster of 99 islands separated from mainland Malaysia by the Straits of Malacca, is a district of the state of Kedah in Northern Malaysia and lies approximately 51km west of Kedah. The total land mass of the islands is 47,848 hectares, while the main island of Langkawi itself has a total of 32,000 hectares. The main island spans about 25km from north to south and slightly more for east and west. The coastal areas consist of flat, alluvial plains punctuated with limestone ridges. Two-thirds of the island is dominated by forest-covered mountains, hills and natural vegetation.