Cursed Areas need to be cleansed by destroying the cursed skull.
Cursed Area #1
There is a cursed area on a hill between Ravensburg and Walden. The cursed symbol is found within a cave beneath the area. It’s quite dark in the cave, so make sure to get out a torch by holding ‘T’.
Cursed Area #2
There is a cursed area on an island south of Soham Hideout. You’ll need to avoid the toxic fumes by using the wooden poles and platforms to reach the hut where the cursed skull is found.
Cursed Area #3
There is a cursed area north of Earnningstone. The cursed skull is found in the tree, so you’ll need to use your bow to shoot it. If you’re out of arrows, you can find some nearby the cursed area.