The story was invented by a journalist Wojciech Mazurkiewicz, as a local equivalent to the legend of Loch Ness Monster, and was for the first time mentioned in media in the 1980s.
[1] The creature was invented by a journalist Wojciech Mazurkiewicz, as a local equivalent to the legend of Loch Ness Monster.
Some media had published the interviews with people who allegedly saw the creature, and posted the pictures meant to visualize the possible look of the monster.
[1] Dirty water present in the lake led many to believe that the monster had consumed sewage.
The topic of the monster lost popularity after the sewage treatment plant has been built nearby, leading to the improvement of the water quality.