The Glyderau (a Welsh plural form, also known in English as the Glyders) are a mountain group in Snowdonia, North Wales. The name derives from the highest peaks in the range, Glyder Fawr and Glyder Fach. According to Sir Ifor Williams, the word "Glyder" derives from the Welsh word "Cludair", meaning a heap of stones.
Parked @ Ogwen Bank set off on cycle path in a southerly direction, turned right up cwm perfedd then right along the 500m index contour to pick up the faint track to counter around to the sauce of cwm ceunan, up the ridge to carnedd y Filiast 721m.
