The Feywild

The Feywild is an echo of The Material Plane that overlaps it, the mirror of Shadowfell. It teems with magic and life, and is the place where Archfey, Eladrin, Hobgoblin tribes, and Gnomes (as well as Sunset Goblins) all come from.
There were once many routes into the Feywild, from Abhaile and The Tre. Elves would call upon Eladrin and Archfey for consultations with magic and social calls with cousins, and Halflings and Humans would run wild with Hobgoblins and Sunset Goblins in The Tre. However, after the calamity that led to the Wound being opened and demons spreading into The Material Plane, those routes were closed and the Archfey refused to answer any calls for help from the mortals.
Nobody has been able to get into the Feywild for over a thousand years.