Knife-edge ridges, high summits, and a full circuit above the lakes of Eryri
The Snowdon Horseshoe forms a complete mountain circuit around the head of the Llanberis Pass, linking the ridges and summits that surround Yr Wyddfa. Beginning and ending at Pen-y-Pass, the route follows a continuous line over Crib Goch, Garnedd Ugain, Yr Wyddfa, and Y Lliwedd, enclosing the dark waters of Llyn Llydaw and Glaslyn below. For those exploring North Wales through self-guided travel, it offers a concentrated experience of high ground within Eryri National Park, shaped by rock, exposure, and elevation rather than distance alone.
The ascent begins quickly, climbing steeply towards the narrow crest of Crib Goch. Here the character of the walk changes. Hands are often needed, the ridge narrows, and progress becomes deliberate and attentive. Movement is slower and more precise, with air on both sides and long views opening across the surrounding valleys and peaks.
Beyond the ridge the route broadens slightly, crossing stony ground towards Garnedd Ugain and on to the summit of Yr Wyddfa. Despite its popularity, the height and scale of the landscape remain striking, with wide views stretching across Snowdonia, the coast, and the distant Irish Sea on clear days.
The return over Y Lliwedd feels quieter and more spacious. Rocky paths trace the rim above the lakes, offering a different perspective back towards the ridges already crossed. The descent is steady and reflective, completing the horseshoe shape as the path drops back towards Pen-y-Pass.
Although the overall distance is modest, the terrain demands care and experience. Exposure, loose rock, and rapidly changing weather mean the route feels serious and committing throughout. For many walkers, its appeal lies in that intensity — a compact but sustained day on high mountain ground, where concentration and landscape are closely linked.
Trail Overview
Distance
Approximately 7 miles / 11 km
Typical time on foot
6–8 hours
Start
Pen-y-Pass, near Llanberis
Finish
Pen-y-Pass (circular route)
Terrain
Rocky paths, steep ascents, exposed ridges, and scrambling sections
