The Fey Plane

One of the four True Planes, the fey plane is overflowing with verdant life. Like the other three True Planes, it partially overlaps with the rest of the planes while also having regions that are "pure," with no overlap.
When not mixed with other planes, the fey plane is a place of enchanting natural beauty: mystical forests, shimmering lakes, entrancing auroras, and so forth. The fey plane is filled to bursting with native life, ruled by magical civilizations, although its people are foreign and alien to the mortals of the Nexus. Most of what's commonly known about the fey plane is inferred from its impacts on the Nexus rather than being learned straight from the source.