The Outlands are an area of land just outside of Chima.
Long ago, when animals harnessed Chi for the first time, some didn't want to use it. Those animals who did use Chi gradually became smarter, more advanced, and more capable. Those who didn't remained in the same, walking on all fours, and unevolved from their natural state. These animals went to the Outlands never to be seen again. Legend says that when Chima needs them most, the Legend Beasts will return.
The only known inhabitants of the Outlands are the Legend Beasts, as well as the Dark Tribes (Spiders, Bats, Scorpions). It is also known that the Fire Vs Ice Tribes live somewhere in the region. Eight teenaged animals (Laval, Cragger, Eris, Gorzan, Worriz, Bladvix, Rhogon, Razar) lived there temporarily when uniting to battle the Dark Tribes and saving the Legend Beasts from capture.
Skinnet says he has gone out into the Outlands lots of time, and it isn't so bad thanks to his smell. ShadoWind also gives Laval the Pledge of the Pack, which somehow made it out of the Gorge of Eternal Depth and covered with sap from a plant in the Outlands that makes Skinnet go nuts.
Not much known about the Outlands. But it is a green, foggy swamp with wild plants. There is also a network of caves in the Outlands, set up by the Dark Tribes and connected to the Gorge of Eternal Depth.