Geisers of Halvadar

One of the most toxic natural enviroments in the world set in Lumi, The Geisers of Halvadar is a large landscape of sulphuric basins which periodically produce jets of boiling water whilst alongside spewing toxic sulphuric gasses. The land is littered with skeletons of those unlucky enough to have died here and petrified trees.
Even today very few venture into this land and very few return to describe what they see here.
The enviroment is often always dense with mist from the vents with a slight yellow hue due to the sulpher.
Before the ages of science it was believed that the reason people died when entering this land was due to vengeful demons which ventured and would lure people into feast upon hence the quick decay of corpses in the enviroment. 
The land was named after a Andalucian Empire demon called Halvadar, the demon of greed and manipulation, luring people in and entrapping them in a mist and slowly stripping them away to feast upon.
There is a 5 foot tall metal fence which surrounds the geiser lands with many signs stating not to enter or death will occur.