9k Run Beddgelert: Scenic Trails of Mynydd Sygyn

Route Overview & Local Insights

This 8.8km loop offers a quintessential Welsh running experience, blending riverside paths with rugged mountain terrain. Starting in the picturesque village of Beddgelert, you'll shadow the Afon Glaslyn toward the dramatic Aberglaslyn Pass. The route transitions from gentle paved sections into a challenging Category SL (Short Local) fell run as you climb 303m via the Cwm Bychan path. Runners can expect technical underfoot conditions on the ascent, rewarded by sweeping views of the Snowdonia (Eryri) massif before a fast, flowing descent toward Llyn Dinas and a flat, scenic push back to the village finish.

Steeped in folklore and history, Beddgelert is perhaps most famous for the legend of Gelert, the faithful hound of Prince Llewelyn. As you run through this landscape, you are traversing part of the Cambrian Way, a high-level trail through the wild heart of Wales. The area is a remnant of the region's industrial past, with the route passing near old copper mines that once thrived beneath the shadow of Mynydd Sygyn. This run perfectly captures the transition from the lush, sheltered valleys to the jagged, slate-riven uplands that define this corner of Gwynedd.