Miles of swamp and lowlands spread out to the south of the Nentir Vale. Home to all manner of creatures, the Fens have also been an important source of herbal remedies for the vale.
The meeting of the White River and Nentir River occurs in an area of fens, swamps, and marshes known as the Witchlight Fens. This is the northernmost extent of a large region of moors known as the Trollhaunt. While monsters like the Daggerburg goblins abound within the Witchlight Fens, it is perhaps best known for tales of bog hags and other such unnatural predators.
There are rumours of a Ghost Tower located somewhere in the Fens.