4.6
(19)
1,942
riders
13
rides
No traffic touring cycling routes around Llyn Trawsfynydd are set within Snowdonia National Park, offering a diverse landscape for cyclists. The region features mountainous terrain, expansive forests, and the prominent man-made lake itself. Cyclists can expect a mix of gravel paths, tarmac, and dedicated cycle paths, with some sections incorporating country lanes. The area provides views of surrounding mountains, including the Rhinogau range.
Last updated: June 29, 2026
3
riders
84.6km
06:00
1,700m
1,700m
Cycle 52.6 miles (84.6 km) from Trawsfynydd to Lake Bala and Llyn Llanwddyn, gaining 5567 feet (1697 metres) in Snowdonia.
5
riders
20.6km
01:40
310m
310m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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12
riders
49.9km
04:11
870m
870m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
10.4km
00:49
110m
110m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
196
riders
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
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Popular around Llyn Trawsfynydd
Prysor Cafe now open most days, nice seating outside overlooking llyn.
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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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Typical rural stone built bridge in a gorgeous country setting. Cycling along these back lanes and seeing these structures is like being in an open air museum.
1
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The road from Bala Lake to Lake Vyrnwy is simply one of the most challenging, scenic and highest rides through the Welsh mountains. If you’re fit enough you will find it one of the greatest rides in the British Isles.
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Coed y Brenin was Britain's first purpose-built mountain biking center and it remains one of the sport's top destinations. Eight purpose-built mountain bike trails start at the visitor center and range from easy trails for families and beginners to technical trails for experienced mountain bikers. Other facilities for mountain bikers include a bike shop and a skills room where you can develop your riding techniques. The visitor center is also the starting point for walking and running trails through the Coed y Brenin Forest Park, as well as orienteering courses and geocaching. Two of the walking routes are suitable for visitors who use an off-road mobility scooter. There are also children's play areas, a café and plenty of picnic tables. (https://naturalresources.wales/days-out/places-to-visit/north-west-wales/coed-y-brenin-visitor-centre/?lang=en)
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Nice viewpoint for this area.
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This picnic spot provides lovely views across Llyn Trawsfynydd and the surrounding mountains. The lake is artificial, created in the 1920s to supply the Maentwrog power station, though it later became the cooling water source for the Trawsfynydd nuclear power station. It's slightly larger than Llyn Tegid (Lake Bala), Wales' largest natural lake.
1
0
This is a lovely viewpoint above the popular hiking and mountain biking trails of the Coed y Brenin Forest. Rising across the valley of the Afon Eden rises Y Garn, an outlier of the ancient Rhinogydd. The main peaks of the range can be seen beyond, with Rhinog Fawr's squat pyramid looking particularly impressive.
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The routes around Llyn Trawsfynydd offer a varied terrain, ideal for touring cyclists seeking diverse surfaces. You'll encounter a mix of dedicated cycle paths, gravel paths, tarmac, and some sections with mud tracks. For the best experience, especially on the circular lake route, a mountain bike or hybrid with knobbly tires is recommended due to the varied surfaces and occasional challenging hills.
Yes, a popular option is the circular cycle loop directly around Llyn Trawsfynydd. This route spans approximately 14-17 km (9 miles) and offers a largely car-free experience. While most of it is dedicated cycle path, some sections incorporate country lanes and roadside pavements, including a short stretch along the A470 with an adjoining cycle path. A good example is the Maentwrog Dam – Llyn Trawsfynydd loop from Trawsfynydd, which covers a significant portion of the lake's perimeter.
The routes around Llyn Trawsfynydd cater to various skill levels. While some are moderate, like the Llyn Padarn Lakeside Trail – Llyn Trawsfynydd loop from Gellilydan, others are more challenging. For an easier ride, consider the View of Llyn Trawsfynydd – Maentwrog Dam loop from Maentwrog, which is rated as easy. The region also features more difficult, longer-distance options for experienced touring cyclists.
As you cycle around Llyn Trawsfynydd, you'll encounter several points of interest. The lake itself is a central feature, offering stunning views. You can also see the impressive Maentwrog Dam, built for hydroelectric power, and the notable landmark of the Trawsfynydd Nuclear Power Station, which is currently undergoing decommissioning. The area is rich in natural beauty, with opportunities for birdwatching and enjoying the Snowdonia National Park landscape.
Yes, Llyn Trawsfynydd is well-suited for family cycling. The dedicated cycle paths and well-maintained routes, particularly the circular lake loop, provide a safe and enjoyable environment away from heavy traffic. The varied terrain keeps things interesting, and the relatively flat sections are great for younger riders or those looking for a relaxed outing.
Many of the paths and country lanes around Llyn Trawsfynydd are suitable for cycling with dogs, provided they are well-behaved and kept under control, ideally on a lead. Always be mindful of local signage, livestock, and other path users. It's advisable to check specific route details for any restrictions before you go.
There are various parking options available around Llyn Trawsfynydd, particularly near popular access points for the cycle routes. Look for designated car parks in villages like Trawsfynydd or Maentwrog, which often serve as starting points for the circular lake route and other trails. Specific parking details can often be found on individual route descriptions or local visitor information.
The spring and summer months, typically April to September, offer the most pleasant weather for cycling around Llyn Trawsfynydd. During this period, you'll experience milder temperatures and longer daylight hours. Autumn also provides beautiful scenery with changing foliage, though the weather can be more unpredictable. Winter cycling is possible but requires appropriate gear for colder, potentially wetter conditions.
While the routes themselves are largely traffic-free, you'll find cafes, pubs, and accommodation options in the nearby villages such as Trawsfynydd and Maentwrog. These establishments are perfect for a refreshment stop or a meal before or after your ride. It's a good idea to plan your route to pass through these villages if you intend to stop for amenities.
The area is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the stunning natural beauty of the lake and surrounding Snowdonia landscape, the peacefulness of the dedicated cycle paths, and the variety of terrain that keeps rides engaging. The sense of being immersed in nature while enjoying a largely car-free experience is frequently highlighted.
The main circular route around Llyn Trawsfynydd, which is approximately 14-17 km (9 miles) long, can typically be completed in 1.5 to 2.5 hours, depending on your pace and how often you stop to enjoy the views or attractions. For example, the Maentwrog Dam – Llyn Trawsfynydd loop from Trawsfynydd is estimated to take around 1 hour and 40 minutes.


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