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Routes
Gravel rides
United Kingdom
Wales
Powys

Nant Irfon National Nature Reserve

Routes
Gravel rides
United Kingdom
Wales
Powys

Nant Irfon National Nature Reserve

The best gravel rides around Nant Irfon National Nature Reserve

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.

Best gravel bike trails around Nant Irfon National Nature Reserve

  • The most popular gravel bike trail is Abergwesyn Valley – Abergwesyn Pass loop from Nant-ystalwyn, a 26.3 miles (42.3 km) trail that takes 3 hours 21 minutes to complete. This difficult route navigates the challenging Abergwesyn Valley and Pass, known for its remote character and climbs.
  • Another top favourite among local gravel bikers is Old Drovers' Road to Tregaron – Capel Soar y Mynydd loop from Cefn Fannog, a difficult 23.6 miles (38.0 km) path. This route traverses historic drovers' roads and open moorland, offering a sense of isolation and expansive views.
  • Local gravel bikers also love the View of Llyn Brianne – Llyn Brianne Dam loop from Rhandirmwyn, a 44.2 miles (71.2 km) trail leading through the scenic Llyn Brianne area, often completed in about 7 hours 2 minutes.
  • Gravel biking around Nant Irfon National Nature Reserve is defined by vast moorlands, dense conifer forests, and remote, steep-sided valleys. The network offers options for challenging rides suitable for very good fitness levels.
  • The routes in Nant Irfon National Nature Reserve are highly rated by the komoot community with an average score of 5.0 stars from over 2 reviews. More than 20 gravel bikers have used komoot to explore Nant Irfon National Nature Reserve's varied terrain.

Last updated: April 23, 2026

2

riders

#1.

Abergwesyn Valley – Abergwesyn Pass loop from Nant-ystalwyn

42.3km

03:21

920m

920m

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

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Popular around Nant Irfon National Nature Reserve

Cycling around Nant Irfon National Nature Reserve

Hiking around Nant Irfon National Nature Reserve

MTB Trails around Nant Irfon National Nature Reserve

Road Cycling Routes around Nant Irfon National Nature Reserve

Running Trails around Nant Irfon National Nature Reserve

Tips from the Community

Denis
March 27, 2025, Bwlch Easgair Gelli Climb

It's going to climb!

Translated by Google

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It was a truly stunning spot to take in the scenery from this elevated panoramic viewpoint. Highly recommended.

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Andy Bryant
February 5, 2025, Abergwesyn Pass

It's a truly stunning ride valley mountain road and not to be missed if you are in the area.

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Andy Bryant
February 4, 2025, Llyn Brianne Dam

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!

2

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More stunning forestry gravel that links the Tregaron mountain road over towards Tyn y Cornel hostel.

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Frequently Asked Questions

How challenging are the gravel bike trails around Nant Irfon National Nature Reserve?

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.

What kind of terrain will I encounter on the gravel bike routes?

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.

Are there any notable natural features or landmarks to see along the routes?

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.

What do other gravel bikers enjoy most about the trails in Nant Irfon National Nature Reserve?

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.

When is the best time of year to go gravel biking in Nant Irfon National Nature Reserve?

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.

Are there any circular gravel bike routes available?

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.

Are there any family-friendly gravel biking options in the area?

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.

Can I bring my dog on the gravel bike trails?

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.

Where can I find parking for the gravel bike trails?

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.

Are there cafes or pubs near the gravel bike trails for refreshments?

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.

What is the longest gravel bike route in this guide?

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.

Are there any routes that feature the Old Drovers' Road?

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.

Most popular routes around Nant Irfon National Nature Reserve

Traffic-free bike rides around Nant Irfon National Nature Reserve

Most popular attractions around Nant Irfon National Nature Reserve

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