Saint Nectan's Kieve is in Saint Nectan's Glen, and is a plunge pool fed by a 60-foot-high waterfall on the Trevillet River. ‘Kieve’ is an unusual and uncommonly heard English word for 'basin'. St. Nectan’s Knieve is where the hermit is supposed to be buried. It is believed by some to be a sacred place. In a cottage nearby, two ladies lived as recluses in the 19th century, and were a Cornish equivalent to the two ladies of Llangollen.
For further information, please read Haunted Britain by Antony D. Hippisley Coxe.