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.
Start from Idwal cottage to Cwm Idwal. Scramble up unnamed ridge (grade 1) looking for interesting rock pitches to upper Cwm Clyd. Keeping the crag to the left ascend steep ground to the slopes SE of the summit. Walk up easy slopes to the summit. Return via NE ridge to Cwm Idwal
