Arenig Fawr rises in isolation above its own lake — Llyn Arenig Fawr — between Bala and Ffestiniog, visible from Yr Wyddfa and from the Berwyn mountains to the east. It is rarely visited, approached across rough trackless ground, and its summit offers one of the most expansive panoramas in Wales. Complete remoteness at modest altitude — this is what the Rhinogydd and Aran region offer that the crowded northern mountains cannot. This is Experience #97 of the Snowdonia 100.
Route Details
| Start | Llyn Arenig Fawr car park (via B4391 from Bala) |
| Distance | 9km return |
| Ascent | 500m |
| Time | 3.5–4.5 hours |
| Navigation | No clear path above the lake — compass essential |
| Terrain | Rough heather and grass — physically demanding |
The Memorial
On the summit of Arenig Fawr stands a memorial to the crew of a United States Air Force B-17 Flying Fortress that crashed here on 4 August 1943, killing all eight crew members. The aircraft — on a training flight — struck the summit in cloud. The memorial, maintained by local volunteers, is a reminder that the remoteness of these mountains has claimed lives beyond the usual categories of mountain accident.
The View
The summit panorama on a clear day extends to the sea in multiple directions — Cardigan Bay to the west, the Dee Estuary to the northeast, the Irish Sea to the north. Yr Wyddfa is visible to the northwest; Cadair Idris to the southwest; the Berwyn to the east. Few walkers ever stand here. The view belongs entirely to those who make the effort.
Experience #97 of 100 — Hidden Eryri category.
Independently written — Snowdon.com