Llyn-y-forwyn, the "Maiden’s Lake" in Ferndale, is the home of the enchantress Nelferch, who married a mortal man.
Darran Park Lake - Ferndale
When he broke a vow not to ask her about her past, she left him penniless and aged far more than the years of their marriage.
Her spirit haunts the lake to this day, palpable in the gloom where steep cliffs shut out the sun from the shore.