This incredible lake is said to be the home for a water-bull with “fiery horns and hoofs with flames issuing out of its nostrils”, which the author Coxe describes in 'Haunted Britain' as a “Welsh Loch Ness Monster”.
Other tales talk of solitary walkers who have been dragged to their death, and of fairies, namely the Welsh Tylwyth Teg. According to The Mabinogion, the most ancient of Celtic literature written in the 14th century in the Red Book of Hergest, but orally dating back much further, the area was inhabited by a number of mythical beasts.