Working for Plas Y Brenin with University of Central Lancashire Outdoor Degree 2nd Year Students. Pen-Y-Pass to Miner's track. Followed this to ridge between Llydaw and Glaslyn. Ascended this ridge to join the Watkin path and continued along this to the summit. Descent was via the South ridge to Bwlch Cwm Tregalan and then descended the Watkin path to reach Gwynant car park. Wintery conditions and axes were used.