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.
Dry and sunny, turning to hail near the end. Strong, cold breeze from the southwest. Supervising group of year 5 students from Nant BH on a walk around Cwm Idwal. 
