Divine Wilderness, in the remote mountains.
If one was to say that the Divine Wilderness was a place where very few humans resided, then the remote mountains deep in the Divine Wilderness was where even the Desolate race did not come often.
There were millions of mountains here, in a long winding range. There were lakes in between the mountains that resembled seas.
Other than that, the remote mountains also had vast swamps, deep valleys as well as miasma-filed lands where many powerful beasts lay dormant.
The remote mountains, that was filled with all sorts of mythical creatures, was considered a terrifying area of the Divine Wilderness. Without the Desolate race that could communicate with desolate beasts, even a human Empyreal King would have to be careful in a place like this. Once they chance upon a large scale beast horde, there was even the risk of death.