Nikkesen's Pool is located in the Awin Ruy ("Ruddy Stream") near its junction with the Glen Roy river in the parish of Lonan. It was said to be the haunt of a water-sprite called the Nikkesen, a creature of the Germanic Nixie tradition who appeared as a horse or a handsome young man, drawing victims - chiefly girls - into his underwater dwelling. By full-moon light, he was said to lead singing and dancing processions of his captives around the meadow below the pool.