Llyn y Fan Fach, Black Moutain, Brecon Beacons National Park, Wales. Shrouded in Welsh legend, this Carmanthenshire lake has been named as one of the 1,000 must-see sights across the globe by an influential travel bible. Llyn y Fan Fach, 12km southeast of Llandovery in the Brecon Beacons, is the only spot in Wales to make the list, which was put together by Lonely Planet. The travel guide describes the Mid Wales beauty spot as “enchanting” and recounts the tale of The Lady of the Lake.