4.7
(24)
1,602
riders
50
rides
Road cycling routes around Llyn Arenig-Fawr traverse a mountainous landscape within Snowdonia National Park (Eryri), North Wales. The region features quiet roads, heather-covered moorland, and views of prominent Snowdonia summits. Road cyclists encounter varied terrain, from gentle lakeside paths to challenging ascents with significant elevation gains. The area is characterized by its rugged, rocky composition and the serene Llyn Arenig Fawr reservoir.
Last updated: May 11, 2026
4.8
(5)
153
riders
27.7km
01:12
180m
180m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
5.0
(1)
19
riders
10.4km
00:27
50m
50m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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12
riders
11.4km
00:46
70m
70m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
72
riders
87.7km
04:47
1,610m
1,610m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
8
riders
83.1km
04:23
1,080m
1,080m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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Good loop. I rode up out of Llanuwchllyn. But this ride would work very well starting in Bala. The section up around Arenig is great. A few gates to open/close, one farm to go through....but this is a good alternative to the sadly hobbled Bala Loop (Vyrnwy).
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It's a good climb, it's hard but it's beautiful
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A 10/10 piece of road starting just after Dolhendre caravan park. The roads are smooth and winding, with some steep but varied gradients. Keep an eye out for the waterfalls and enjoy the descent heading towards Trawsfynydd: just watch out for the gates!
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Winding single track road with a few gates to go through. I would recommend riding this from East to West to get the most fun decending
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No haute cuisine, but coffee and delicious cakes and rustic soups and other dishes. Very good after the strenuous hike.
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Statue of Thomas Ellis (1859–1899) William Goscombe John (1860–1952) High Street (A494), Bala, Gwynedd
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The Llyn Arenig-Fawr region, situated within Snowdonia National Park, offers a mountainous landscape with quiet roads. Cyclists will encounter varied terrain, from heather-covered moorland to rugged, rocky areas, and significant elevation changes. The area provides extensive views of prominent Snowdonia summits.
There are over 50 road cycling routes available around Llyn Arenig-Fawr, catering to various skill levels. These include easy loops around lakes and more demanding climbs through the mountainous terrain.
Yes, there are several easier options for road cyclists. For instance, the Bala Lake – Llyn Tegid (Bala Lake) loop from Llangywer is an easy 18.9 km route, and the Bala Town Centre – Bala Town Centre loop from Llangywer is an even shorter 10.4 km path, both offering gentle rides.
For more challenging rides, consider routes that involve significant elevation gains. The Stwlan Dam climb from Bala loop is a difficult 87.7 km route with over 1600m of elevation gain. Another demanding option is the Llyn Tegid, Llyn Celyn & Carnedd y Filiast loop from Bala, covering 83 km with over 1000m of climbing.
Road cyclists in the Llyn Arenig-Fawr area can enjoy views of the serene Llyn Arenig Fawr reservoir itself, as well as the majestic Arenig Fawr mountain. The broader region offers panoramic views of other significant Snowdonia summits like Snowdon and Cadair Idris. You might also encounter the bothy near the lake or the memorial to American airmen on Arenig Fawr's summit.
The Llyn Arenig-Fawr region is characterized by its rugged, mountainous terrain. While cycling is possible year-round, the most favorable conditions for road cycling are typically during the warmer, drier months, generally from late spring to early autumn, when weather is more stable and roads are clear of ice or heavy rain.
Yes, many road cycling routes in the area are designed as loops. Examples include the Llyn Tegid (Lake Bala) – Bala Lake loop from Llangywer, a moderate 39.8 km ride, and the challenging Llyn Tegid, Llyn Celyn & Carnedd y Filiast loop from Bala.
The area is highly rated by the komoot community, with an average score of 4.8 stars from over 20 reviews. Cyclists often praise the quiet, scenic roads, the challenging climbs, and the spectacular mountain scenery that offers a sense of solitude within Snowdonia National Park.
Yes, the 'mountain road that links Llanuwchllyn to Trawsfynydd' provides a scenic approach to Llyn Arenig-Fawr. Additionally, a 'quiet road near Llyn Celyn' serves as a starting point for climbs that pass the lake, offering beautiful views of the surrounding landscape.
While the immediate area around Llyn Arenig-Fawr features challenging mountainous terrain, easier, family-friendly options can be found nearby. The loops around Bala Lake (Llyn Tegid), such as the Bala Lake – Llyn Tegid (Bala Lake) loop from Llangywer, offer less elevation gain and are more suitable for families.
While the Llyn Arenig-Fawr area itself is quite remote, towns like Bala, which serves as a starting point for several routes, offer amenities such as cafes and pubs where cyclists can refuel and rest.


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