A place where no one knows about or finds until the Circle chooses a person to discover it. For the Circle of Culthus has a purpose for that person, and letting other people know of it or discover it would hinder that purpose.
Sharp thorns, tangled vines, and lost secrets.
An enchanted forest where music permeates the fabric of life, leaving its mark on fauna and flora alike.
A forest of perpetual Autumn
Spots of perfect green. The Ankorillian Islands. Jewels of the Blue.
A moving island, and home to both the honorable Lizardfolk and the evil Cult of Dar’Orgath.
Wise travelers know to pass wide around Destinen Wood, for few have emerged unscathed from that accursed forest.
Uncharted, and unexplored save by a few, Xenos seems a veritable paradise with plenty of food and fresh water, a godsend to any ship that finds it. Many ships have put ashore, only to find that they can never leave.
No one goes to the Western Woods. There are things that come out at night that it would be a very bad idea to meet. The Western Woods have a reputation of being haunted, or rife with wild magic. Or both.
The Dark Oak Forest is a place of darkness, danger, and Evil. For reasons best not talked about, the Dark One has visited this place, twisting it forever.
There are places in this world, which hold a weak barrier to the Spirit realm and the real world. One such place is The Spirit Glade.
When you sleep, your soul briefly returns to the place where it was created/goes to when it dies, and seeks nourishment. Everybody's soul is created with a little link (or you could say a greater entity calls it back) to that place so that it can return easily, but upon death, the soul returns via that and annihilates the link as if returns.
Also, as an added thingy, you could say the entity supplying the link, or residue of the links themselves, (whichever) is the source of all arcane power.