A strenuous 13.5 km mountain crossing over the ridge between Glendalough and Glenmalure — the most dramatic single-day walk in the Wicklow Mountains. Allow 5–6 hours. Linear, so plan transport at the Glenmalure end. Includes the Spinc boardwalk, the Mullacor ridge, and a long descent into Ireland's deepest glacial valley. Strong walkers only; full mountain gear required.
⚠️ Distances and grades are cross-checked — always carry an OS map on mountain routes.
Start point shown — click the marker to get directions. Zoom in to explore the area.
Start at the Upper Lake car park at Glendalough. Follow the white-arrow Spinc route up the wooden steps and along the boardwalk above the Upper Lake. At the southern end of the boardwalk, take the red-arrow Wicklow Way trail south over Mullacor. The descent into Glenmalure is steep and rough underfoot in places. The trail meets the valley road near the Glenmalure Lodge. Allow 5.5 hours at a steady pace. Linear walk — arrange transport from Glenmalure back to Glendalough.
A beautifully restored historic guesthouse on the Square in Tinahely — the Wicklow Way passes through the village. Double, twin and small-double rooms, all with private bathrooms. Self-service coded entry — arrive when it suits you.