Sea of Trees

The main location of most of the Demi-Humans in Tortus because of how dense the fog is, which make normal humans easily lose their baring and get lost.

Inside the Sea of Trees is Verbergen, the country of many beastmen.

In the middle of the Sea of Trees is the Grand Tree Uralt that contains the Labyrinth of Lyutilis Haltina.

Trivia

 * Hajime has theorized that the Grand Tree is somehow connected to World Tree "" from after encountering evidence of giant trees of other worlds that he explored.