Castell y Bere

"One Welsh castle sometimes overlooked by visitors is Castell- y-Bere, once an impressive fortress built by Llywelyn ap Iorwerth, also known as Llywelyn the Great, Prince of Gwynedd in the early 13th century. But what a marvelous, typically Welsh site for a castle! Embedded in the arms of the darkly foreboding, starkly greenish-gray landscape formed by rugged Cadair Idris and its mountainous cohorts near Abergynolwyn some 10 miles SW of Dolgellau, the greatly ruined Castell-y-Bere now lies isolated from the major communication routes across Wales, atop a steep-sided, flat-topped rock, perfectly situated to stand guard over the surrounding valley floor. The drive along the minor roadway to the site seems to go on forever, but the breath-taking spectacle of Cadair Idris, the "Chair of Idris", is in itself worth the jaunt. Legends have it that if you spend a night on the mountain, you will awake the next morning either a poet or a madman!"

http://www.castlewales.com/cybere.html