Fairy tale about waterman from the river Vltava

It´s been a long time since a waterman lived in Vltava near a village called Zlatá Koruna. People were really scared of him for a reason that he was a really ugly green man with a big head and disgusting greenish hair. He never did anything good for the people and he only scared everybody. Even those strong raftsmen, who sailed the wood on the Vltava river, were scared. The waterman was jumping on their rafts and he untied them. He was disturbing decent washerwomen when they were washing laundry in the Vltava river. He was stealing their clothes and let them run downstream and the poor women were catching the clothes far far away.