Friday, March 06, 2026

Tour de Mynydd Mawr

Peaks: Foel Rudd, Mynydd Mawr, Craig Cwmbychan
Area: Nantlle, Eryri
Some highly obscure corners of the national park here, particularly on a deliberately long and winding descent past the very steep crag of Castell Cidwm. I set off from the Snowdon Ranger car park, nice to relive October's Eryri marathon, then jogged along to the end of Llyn Cwellyn before embarking on the long climb through the forest. I suspect I last did this with little dog Judy in the 1990s - I remember her having an unhealthy obsession with the crags of Craig y Bera! There are multiple footpaths heading upwards and I tried to take the logical line but still found myself crawling through overgrown woodland at one point. Eventually I reached the open hill below the steep climb up Foel Rudd, enlivened by a brief but superb sunburst over Rhyd Ddu to Yr Aran, with Y Garn (Nantlle) emerging from the mist on the right. The route heads up very steeply to Rudd, and then the familiar ridge to the main summit. This is excellent, and also taken by the Fron Four race which I've done a couple of times. Great views down to Craig y Bere on the left (I have done Sentries Ridge and Angel Pavement here, both memorable). It was quite windy and cold, with a little snow on the summit, so I didn't hang around but jogged down the spur north-east to great views directly down to Llyn Cwellyn. This spur (Craig Cwmbychan) is very obvious from the road, as is the shallow gully above Cwm Planwydd that I then took down to Castell Cidwm. This is extremely steep, with a tiny path some help, and plummets down to a small waterfall of the Afon Goch below the famously steep crag of Cidwm (I have never climbed here, too hard for me). An unbridged river blocks progress round the west side of Cwellyn so instead I had to jog along the muddy lake banks (track) all the way back to the far end of the lake.

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