5.0
(2)
22
riders
4
rides
Gravel biking around Nant Irfon National Nature Reserve offers a challenging experience across a dramatic and undeveloped landscape. The region is characterized by vast moorlands, dense conifer forests, and ancient oak woodlands, with the River Irfon carving through remote, steep-sided valleys. Riders can expect significant elevation gains and varied terrain, including forest roads, bridleways, and rocky tracks, providing a remote and wild cycling environment.
Last updated: April 23, 2026
2
riders
42.3km
03:21
920m
920m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
5
riders
38.0km
02:44
730m
730m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3
riders
65.3km
05:07
1,370m
1,370m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
1
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Nant Irfon National Nature Reserve
It was a truly stunning spot to take in the scenery from this elevated panoramic viewpoint. Highly recommended.
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It's a truly stunning ride valley mountain road and not to be missed if you are in the area.
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A short climb up from the road brings you to the Dam and carpark, there is no access over the Dam itself. But you do get a good view over the spillway and valley below.
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THE TALE OF THE WELSH “ROBIN HOOD” Known as Twm Siôn Cati Twm Siôn Cati is a historically known figure in Welsh folklore. A tale recounted by Meyrick recalls how Twm was asked by a poor man to steal a pitcher for him. They went together to a merchant where Twm started belittling the man's wares. Having told his friend secretly to take the pitcher of his choice, Twm distracted the merchant by telling him there was a hole in one of the pitchers, which the man denied. Twm desired him to put his hand in the pitcher to test it and the man still denied there was a hole. Twm then asked him how, if there was no hole, could he have put his hand inside? By this time his friend had disappeared with his pitcher, undetected. A tale from Prichard's book involves an occasion when Twm is staying in an inn overnight and realises other people are planning to rob him the following day after he sets off. He has a large sum of money with him. The following morning he behaves as though his money is in the pack-saddle of his horse. When the highwayman catches up, Twm drops the saddle in the middle of a pool. The highwayman wades into the pool to fetch it, Twm takes the opportunity to make off with the highwayman's horse. A complication arises because the horse responds to the voice of the highwayman crying "Stop!" Luckily Twm, in terror, happens to shout a word which makes the horse gallop on again, and he is conveyed to safety. Another tale recounts how Twm waylaid a rich squire, who was accompanied by his daughter, Twm was so smitten with her that he returned her jewellery to her and attempted to woo her, against her father's opposition and, initially, her own. One full moon shortly after the robbery, he crept to her window, roused her from sleep, caught her hand at the window and kissed it, refusing to let her go until she promised to marry him. She wouldn't promise so Twm drew his dagger, drew blood on her wrist and threatened to sever her hand unless she assented to marriage forthwith. She agreed to marry him and she kept her hand. Their marriage followed soon after, despite her father's views and the directness of Twm's courtship methods. The girl was supposedly the widow of the sheriff of Carmarthen. Through this marriage Twm is supposed to have gained respectability, eventually becoming a justice of the peace, sitting in judgement on others, a position he held until his death aged 79.
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What an beautiful valley and with many great swimming spots its my favourite
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Recently dressed with slate. I would no longer recommend road tyres through here. Something a bit wider recommended!
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More stunning forestry gravel that links the Tregaron mountain road over towards Tyn y Cornel hostel.
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The gravel bike trails in this area are generally quite challenging, requiring very good fitness. You can expect significant elevation gains and varied terrain. For example, the Abergwesyn Valley – Abergwesyn Pass loop from Nant-ystalwyn is rated as difficult, navigating a remote character with substantial climbs.
You'll experience a diverse range of terrain, from vast moorlands and dense conifer forests to ancient oak woodlands and remote, steep-sided valleys. Routes often include wide gravel tracks, forest doubletrack, rocky moorland descents, bridleways, and some narrow country roads. This variety adds to both the technical challenge and the scenic beauty of the rides.
Yes, the area is rich in natural beauty. You can explore the dramatic Abergwesyn Valley, known for its incredible views, and the challenging Devil's Staircase Climb. The River Irfon carves through remote valleys, and a unique geological attraction is Wolf's Leap (Camddwr Bleiddiad), a narrow canyon section of the river. Many routes also offer expansive views, such as the View Over Abergwesyn Common.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the wild and remote character of the trails, the dramatic scenery, and the sense of adventure offered by the challenging climbs and varied terrain. The undeveloped nature of the landscape provides a true immersion in the Welsh wilderness.
Late spring and summer offer vibrant scenery, with bluebells in the ancient oak woodlands and diverse birdlife. However, the region's weather can be unpredictable. For the most comfortable riding conditions, generally late spring to early autumn is ideal, but always be prepared for varied weather, as conditions can change rapidly in the Welsh hills.
Yes, many of the routes are designed as loops, allowing you to start and finish in the same location. For example, the Old Drovers' Road to Tregaron – Capel Soar y Mynydd loop from Cefn Fannog offers a challenging circular path traversing historic drovers' roads and open moorland.
The routes around Nant Irfon National Nature Reserve are generally categorized as difficult and require very good fitness due to significant elevation gains and varied terrain. While the wild landscape is beautiful, it might be too challenging for younger children or those new to gravel biking. There are no specific easy or family-friendly routes listed in this guide.
While the reserve itself is a wild environment, many public bridleways and tracks in the surrounding Cambrian Mountains are suitable for dogs, provided they are well-behaved and kept under control, especially around livestock. Always check local signage and be mindful of ground-nesting birds, particularly during spring and early summer. Ensure your dog is fit enough for the challenging terrain.
Parking options are typically available at the start points of various routes. For instance, routes like the Abergwesyn Valley – Abergwesyn Pass loop often start from small hamlets or designated parking areas in places like Nant-ystalwyn. It's advisable to check the specific route details on komoot for precise parking information for your chosen tour.
The area around Nant Irfon National Nature Reserve is quite remote and isolated, so amenities like cafes and pubs are sparse directly on the trails. You might find options in nearby villages or towns such as Llanwrtyd Wells, which is known as a hub for outdoor activities. It's always a good idea to carry sufficient water and snacks for your ride.
The longest route featured in this guide is the View of Llyn Brianne – Llyn Brianne Dam loop from Rhandirmwyn. This challenging trail covers 44.2 miles (71.2 km) and typically takes around 7 hours to complete, leading through the scenic Llyn Brianne area.
Yes, the historic Old Drovers' Road is a prominent feature in some of the routes. The Bwlch Easgair Gelli Climb – Old Drovers' Road to Tregaron loop from Ffrwd Camddwr Waterfall incorporates sections of this ancient path, offering a sense of history amidst the wild moorland scenery.


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