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.
St GR801170 walk up to Cribin Fawr (659) before descending and then climbing to summit Waun-oer (670) retrace steps back to car. Drive to next point: GR961396 walk up raod to farm and follow Nant Cwm-da & walk to col of Moel Darren and walk up to summit of Foel Goch (611) continue East to pick up Nant Cwm-da & follow back to start point.
