I am in the process of building a farm on the plains, on the edge next to a swamp. :o)
Its not finished yet but is fairly secure with strong defences (earth wall & moat on 3 sides). I only get intruders during raids (entering from the sea) and the odd deathsquito flying by. Its small but enough to grow barley and flax. I buried wards either side on the coast and that seems to help keep the area quiet and hassle free

https://steamcommunity.com/sharedfiles/filedetails/?id=2786639594