4.8
(5)
97
riders
5
rides
Gravel biking around Trawsfynydd offers diverse terrain within Snowdonia National Park, characterized by a mix of forest tracks, lake shorelines, and rugged mountainous landscapes. The region features the prominent Llyn Trawsfynydd reservoir and provides access to extensive trail networks, including those in Coed y Brenin Forest Park. These routes combine gravel paths, tarmac sections, and some off-road tracks, catering to various skill levels.
Last updated: May 6, 2026
4.5
(2)
32
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
13
riders
34.4km
02:33
620m
620m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(2)
12
riders
55.6km
03:42
700m
700m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
25
riders
9.76km
00:42
120m
130m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
15
riders
11.4km
00:53
200m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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If you smile sweetly you don’t have to pay. There are also public toilets just after this.
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Card payments are accepted. The bridge is open to cyclists and walkers 24/7. There is a slot for the toll in the door outside of operating hours.
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A really fantastic chucks route. one for everyone's bucket list.
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They do take card payments so that’s been an update but it’s not open 24 hrs
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Make sure you have cash for the toll - no card payment here😉
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Beautiful gravel track descent with simply stunning views
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The trails around Trawsfynydd offer a diverse mix of terrain. You'll find extensive forest tracks, scenic lake shorelines, and rugged mountainous landscapes. Routes often combine gravel paths, tarmac sections, and some off-road tracks, providing a varied experience suitable for gravel bikes.
Yes, Trawsfynydd caters to various abilities. You can find easier loops, such as sections around Llyn Trawsfynydd, as well as more challenging routes with significant ascents through mountainous terrain. For example, the The Slipway – Tarw Du Trail Entrance loop from Afon Mawddach is an easy option, while the Penmaenpool Toll Bridge – Penmaenpool Toll Bridge loop from Afon Mawddach is considered difficult.
The prominent Llyn Trawsfynydd reservoir is a central feature, offering picturesque views. As part of Snowdonia National Park, you'll be surrounded by dramatic mountainous landscapes. Routes like the Traws Eryri (Trans Snowdonia) offer views of Tryfan and the Carneddau mountains. You can also explore highlights like Llyn Trawsfynydd itself or the Maentwrog Dam.
Yes, the region has several points of interest. You can visit the historic Tomen-y-Mur Roman Fort, which also includes remains of a Norman castle. The preserved farmhouse home of World War One poet Hedd Wyn, Yr Ysgwrn, is also accessible nearby. For more natural landmarks, consider the Summit of Aran Fawddwy or Moelwyn Mawr summit for stunning views.
Many of the gravel routes around Trawsfynydd are designed as loops, allowing you to start and finish at the same point. For instance, the Coed y Brenin Visitor Centre – Tarw Du Trail Entrance loop from Afon Mawddach is a popular moderate circular option through Coed y Brenin Forest Park.
Trawsfynydd offers gravel biking opportunities year-round, but the best time often depends on your preference. Spring and autumn provide pleasant temperatures and vibrant scenery. Summer is popular but can be busier. Winter riding is possible, but some tracks might be muddy, especially after rain, so be prepared for varied conditions.
Absolutely. Trawsfynydd is ideally located for accessing the renowned trails of Coed y Brenin Forest Park. While Coed y Brenin is famous for mountain biking, its extensive network of forest tracks includes many surfaces perfectly suitable for gravel bikes. The Tarw Du Trail Entrance – The Foundry Skills Area loop from Afon Mawddach is a moderate route that gives you a taste of the area.
While specific 'family-friendly' designations aren't always explicit, the easier loops around Llyn Trawsfynydd offer varied terrain that can be suitable for families, combining gravel paths and tarmac. Always check the route difficulty and length to ensure it matches your family's capabilities.
The gravel biking routes in Trawsfynydd are highly rated by the komoot community, with an average score of 4.7 stars from over 4 reviews. More than 100 gravel bikers have used komoot to explore the region's varied terrain, often praising the diverse landscapes and the mix of forest tracks and lake shorelines.
Yes, the Llyn Trawsfynydd Cycle Loop passes a visitor center where you can find a café to warm up after your ride. The wider Trawsfynydd area and nearby towns offer various cafes and pubs where cyclists can refuel and relax.
The elevation gain varies significantly depending on the route. While some loops around the lake are relatively flat, many routes, especially those venturing into the mountainous parts of Snowdonia, feature significant ascents. For example, the Y Garreg Fawr Stone Archway – View of the Eryri Mountains loop from Llanfachreth includes over 560 meters of elevation gain.


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