Mythic Lands
The lands of Chult jutted into the Trackless Sea to the south of the Sea of Swords. This region is shrouded in legends reaching back into the mythic eras of the Long History of Toril. Travelers' fanciful tales of these lands speak of it as if another world - inhabited by races and creatures unknown elsewhere and where magic itself functions differently. Priests tell stories of a great presence there that stifles the sight and power of their own gods. Scholars speculate the region to be the resting place of powers from the earliest days, whether dead or dormant, yet dreaming.
Common Knowledge
Besides its location, a tropical place thick with jungle forests, volcanic peaks and an archipelago of islands, the lands are commonly believed to be forsaken by the gods - a refuge for ancient things driven from civilized lands. There is strong belief the humanoids within the dark rainforests to mainly be Lizardfolk and the Yuan-ti serpentfolk. Treasure seekers explore the place on rumors of gem mines, and maps to such places are often used in stories of fools never heard from again.
(See also: wiki)