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.
From Gwern Gof Uchaf ascended Tryfan's North Ridge followed by Bristly ridge to Glyder Fach's summit. Descended to bwlch by Llyn Caseg Fraith and then north down into Cwm Tryfan. Followed track back to A5.
