Cadair Idris or Cader Idris is a mountain in Gwynedd, Wales, which lies at the southern end of the Snowdonia National Park near the town of Dolgellau. The peak, which is one of the most popular in Wales for walkers and hikers,[1] is composed largely of Ordovician igneous rocks, with classic glacial erosion features such as cwms, moraines, striated rocks, and roches moutonnées.
From the top of the Bwlch Oerddrws Pass i and 3 people zigzagged steeply up to the summit of Waun Oer and walked along the grassy ridge enjoying views of Cadair Idris and the Rhinogs. We descended to the south to the Cross Foxes Hotel.
