Pencarreg Lake is not far from Lampeter, but lies on the Carmarthenshire side of the river Teivy, and near Llanybyther. According to an old tradition in the district, a village once stood on the spot where now the lake is; but the village was swallowed up, and the lake is now known as the "bottomless." TALLEY LAKES. Talley Lakes are close to the remains of the fine old Abbey, and not far from Edwinsford, the country seat of Sir James Drummond, Bart., Lord Lieutenant of Carmarthenshire. Respecting these lakes also there is a tradition that a town lies beneath their waters. Such traditions of towns lying buried beneath lakes are common to many lakes, both in Wales, and other countries. Such traditions have probably come down from pre-historic times, when people dwelt in lake habitations, and in caves, for safety from the beasts of the forest as well as from human foes. Traces of lake dwelling have been discovered in Switzerland and in other countries. LLYN LLECHWEN. Llyn Llechwen, or Llyn Llech Owen, lies on the top of a hill near Gorslas, in Carmarthenshire. According to a local tradition there was only a small well once on the spot now occupied by the lake. The well had a stone cover which had to be removed by those who came to obtain water, and to be carefully replaced after obtaining it. But once upon a time a certain farmer in the neighbourhood sent a boy almost every day to the well to water his horse. Whenever the boy returned the farmer always asked him, "Did you put back the stone over the mouth of the well, my boy?" The boy answered "Yes." One day, however, when in a hurry, the lad quite forgot about replacing the stone, and the consequence was that the water of the well burst forth till it formed a lake. The above story was told me by an old man named John Jones, who lives in the small town of Llangadock, who added that he had heard it from his mother when a boy. According to another tale respecting the spot, it was one famous warrior known as Owen Lawgoch, and his men, who forgot to replace the cover; but when he found the water bursting forth both he and his men entered a cave in alarm, and fell asleep which is to last till it is broken by the sound of a trumpet and the clang of arms on Rhiw Goch, then to sally forth to conquer. LLYN Y FAN FACH. This lake is known to all lovers of Welsh Fairy Lore. It lies on the Black Mountain on the borders of Carmarthenshire and Breconshire. It has been customary from time immemorial for people from all parts to throng the banks of this lake on the first day of August to see the Fairy Lady of the Lake appearing on the surface of the water to comb her hair. For account of this lady see Fairies in this book. LLYN EIDDWEN, LLYN FANOD, AND LLYN FARCH.