Scandinavian tales and creatures

Havsmannen (the man of the sea) is a handsome young man who can be found wandering along shores in misty weather. He would seek out a lonely sailor’s wife and transform himself into her husband, which often resulted in the wife giving birth to a green-skinned child with gills and fin-like feet. As an apology, Havsmannen would give the sailor good winds and calm seas, ensuring that his boat never ran aground.