Cwm Silyn via Llyn Cwm Silyn
Great loop through dramatic terrain
Moderate Hiking
- Distance
- 8.7 km
- Ascent
- 499 m
- Descent
- 501 m
Explore Gwynedd with curated guides of the best hiking trails, trail running routes, and more. With over 44 3D trail maps in FATMAP, you can easily discover and navigate the best trails in Gwynedd.
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Great loop through dramatic terrain
Moderate Hiking
Trail running Event
Severe Trail Running
Hike and scramble to the top
Difficult Hiking
Explore Cwm Idwal's ice-sculpted beauty and dramatic mountainous scenery, rich in geological and scientific history
Easy Hiking
Llyn Idwal Circular hike, dog friendly, not technical - decent in most weathers
Moderate Hiking
All 15 of the mountains over 3000 ft in Wales
Extreme Hiking
Quieter ascent route than common routes but requires better map skills as no obvious path!
Severe Hiking
do welsh 3000s twice
Extreme Trail Running
Aber Falls - Afon Rhaiad Fawr - Llwytmor - Foel Fras - Drum - Carnedd Y Ddelw - Drosgl - Foel Ganol - Aber Falls
Difficult Hiking
YHA Idwal - Y Garn - Elidir Fawr - Mynydd Perfedd - Carnedd Y Filiast - Lon Las Ogwen - YHA Idwal
Difficult Hiking
Croesor - Cnicht - Cnicht North Top - Quarry - Moelwyn Mawr - Croesor
Moderate Hiking
The UK's toughest 24-hour mountain challenge - 15 peaks | 46km | 4000m ascent
Severe Hiking
An out and back run to one of the highest lakes in Wales
Moderate Trail Running
From Dolgellau, up the Pony Path, down to the Slate Bridge and back up Minfordd to Mynydd Moel
Difficult Trail Running
Scramble up Idwal Buttress into Cwm Cnefion then up Tower Rib to the Glyderau plateau
Moderate Alpine Climbing
Spectacular views guaranteed from the southernmost peak in the Carneddau range
Moderate Hiking