The Comeragh Mountains rise immediately south of Clonmel, forming the most distinctive part of the view from the town and offering some of the finest walking in Munster. The range is a sandstone plateau with dramatic glaciated edges — steep corries on the northern and western faces, gentler heather moorland on top. The highest point, Fauscoum, reaches 792 metres.
Access is straightforward from Clonmel: several roads climb into the hills from the Nire Valley side, and there are car parks at the start of the main walking routes. The walk to Coumshingaun corrie lake is the most popular, a circular route of about seven kilometres with impressive cliff scenery. Allow four hours and bring waterproofs regardless of the forecast.