Toril is an Earth-sized planet that consists of various continents and islands, including Faerûn, Kara-Tur, and Zakhara in the central super-continent and Anchorome, Maztica, and Katashaka in the western region of the world. There is also one large and very mysterious continent east of Kara-Tur called Osse whose nature and inhabitants are all but unknown. Faerûn is one of the major continents on the planet of Toril and where our protagonist begin their adventures. The continent includes terrain that is varied and coastlines to the west and south. The inland sea that keeps the interior lands fertile, connected the west and east regions of Faerûn and serves as a major trade route for many of the bordering nations. Next in significance are the broad region of grasslands in the south that, together with a large lake, separates the area around the inland sea from the coastal nations at the southern edge of the continent. To the east, Faerûn is bordered by a vast region of steppes and in the north were massive glaciers and tundra. South of the continent, separated by the sea, is the sub-tropical landmass. There is also immense complex of caverns and passages that lay beneath many parts of the continent of Faerûn.