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United Kingdom
Wales
South Wales
Carmarthenshire

Allt Rhyd Y Groes National Nature Reserve

The best traffic-free bike rides around Allt Rhyd Y Groes National Nature Reserve

4.8

(5)

150

riders

7

rides

No traffic road cycling routes around Allt Rhyd Y Groes National Nature Reserve traverse a landscape characterized by sessile oak woodlands, steep gorges, and rivers such as the Towy and Afon Pysgotwr Fawr. The area features undulating terrain with varied gradients, offering a mix of challenging climbs and scenic descents. Cyclists will encounter open meadows and craggy heathland, providing diverse backdrops for rides. This region of Carmarthenshire is known for its quiet country lanes, making it suitable for road cycling…

Last updated: July 9, 2026

31

riders

#1.

The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn

27.7km

01:28

230m

230m

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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Easy

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

Hard
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Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

Moderate

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

Hard

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Moderate
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Popular around Allt Rhyd Y Groes National Nature Reserve

Traffic-free bike rides around Allt Rhyd Y Groes National Nature Reserve

Traffic-free bike rides around Allt Rhyd Y Groes National Nature Reserve

Tips from the Community

Jane
October 26, 2025, Llandovery Town Square

A colour village. Llandovery is a lovely place to visit.

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Cwm R MTB trail is completely blocked at top end due to hundreds of wind fallen trees this winter. Please consider before as you can not navigate loop.

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Confronting the Devil's Staircase northbound from near Llyn Brianne reservoir is tackling one of Wales's most infamous climbs, famed for its savage steepness and remote beauty. Prepare for an immediate, brutal ascent as the narrow single-track road rears up, averaging a punishing 10-13% but hitting steep ramps well over 20%, reportedly reaching 25-30%. Feel the wild exposure of the Cambrian Mountains, with stunningly remote views as your reward for conquering this truly devilish challenge.

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It's going to climb!

Translated by Google

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1

Unavoidable !

Translated by Google

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1

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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Frequently Asked Questions

How many no traffic road cycling routes are available around Allt Rhyd Y Groes National Nature Reserve?

There are 7 dedicated no traffic road cycling routes available around Allt Rhyd Y Groes National Nature Reserve, offering a variety of distances and difficulty levels for a peaceful ride.

What are the difficulty levels of the no traffic road cycling routes?

The routes cater to various skill levels. You'll find 1 easy route, 3 moderate routes, and 3 difficult routes. For an easy option, consider The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn, which is just under 28 km.

Are there any family-friendly no traffic road cycling routes?

While specific 'family-friendly' designations aren't always clear for road cycling, the easy route, The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn, offers a gentler experience at under 28 km with moderate elevation gain, making it potentially suitable for families with older children or those looking for a less strenuous ride.

What kind of landscapes and natural features can I expect to see on these routes?

The routes traverse the beautiful Carmarthenshire countryside, characterized by sessile oak woodlands, steep gorges, and views of rivers like the Towy and Afon Pysgotwr Fawr. You might also encounter open meadows and craggy heathland. The area is known for its vibrant spring flora, including bluebells, and diverse wildlife.

Are there any circular no traffic road cycling routes?

Yes, all the routes listed are circular, allowing you to start and finish at the same point. For example, the Llyn Brianne Dam – View of Llyn Brianne loop from Pwll Yr Hyddod offers a challenging 57 km circular ride with significant elevation.

Where can I park when visiting for a no traffic road cycling trip?

While specific parking areas for each route aren't detailed, the routes often start from villages like Rhandirmwyn or Cilycwm, or locations near Llyn Brianne Dam. These areas typically offer local parking options. It's advisable to check local information for parking availability at your chosen starting point.

When is the best time of year to go road cycling here?

Spring and summer are generally ideal for road cycling in this region, offering pleasant weather and the chance to see the woodlands in full bloom with bluebells and other wildflowers. Autumn also provides beautiful scenery with changing foliage. Winter cycling is possible but be prepared for colder, potentially wetter conditions and shorter daylight hours.

Are there options for more challenging no traffic road cycling?

Absolutely. The area around Allt Rhyd Y Groes National Nature Reserve, being part of the wider Mid Wales region, offers varied gradients and significant climbs. Routes like the Llyn Brianne Dam – Abergwesyn Pass loop from Pwll Yr Hyddod (over 53 km with 1099m elevation gain) provide a demanding experience for advanced cyclists.

Can I find places for refreshments or cafes near the routes?

The routes often pass through or start near small villages such as Rhandirmwyn or Llandovery, which is a short distance away. These locations may offer pubs or cafes where you can refuel. It's a good idea to plan your stops in advance, especially on longer routes, as services can be sparse in rural areas.

What do other cyclists say about the no traffic road cycling in this area?

The area is highly rated by the komoot community, with an average score of 4.75 stars from 4 ratings. Cyclists often praise the quiet country lanes, the stunning natural beauty of the Carmarthenshire landscape, and the rewarding views offered by the varied terrain.

How long are the no traffic road cycling routes around Allt Rhyd Y Groes National Nature Reserve?

The routes vary significantly in length. The shortest route, The Towy Bridge Inn – Llyn Brianne Dam loop from Rhandirmwyn, is approximately 15.8 km. The longest route, Llyn Brianne Dam – View of Llyn Brianne loop from Pwll Yr Hyddod, extends to about 57 km, offering options for both shorter excursions and longer, more demanding rides.

Most popular routes around Allt Rhyd Y Groes National Nature Reserve

MTB Trails around Allt Rhyd Y Groes National Nature Reserve

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