Cregennan and the Mawddach
Fairbourne to Bontddu · Wales
Distance5.1mi · 8.2 km
Drive time12 minon the road
DifficultyDemanding
MountainLakesValleyCoast
Steep narrow road above the Mawddach estuary
This single-track lane climbs steeply from Arthog on the coast to Cregennan Lakes on the northern slopes of Cadair Idris. It delivers sweeping views over the Mawddach estuary and Barmouth Bridge before descending the gentler gradient toward Dolgellau. Mind the very tight hairpins, blind crests and the scarcity of passing places.
Where it runs
FairbourneStart · Wales
BontdduEnd · United Kingdom
Character
Corners35bends
Tightness8of 10
Max gradient20%≈ 1-in-5
Hairpins0tight bends
Climb192 mtotal ascent
Summit146 mhighest point · 479 ft
SpringSummerAutumn
Elevation
146 m rangeKnow before you go
- Sharp hairpin above Arthog
- Blind crests with no forward visibility
- Single-track with few passing places
Sources
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