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South Wales
Carmarthenshire

Allt Rhyd Y Groes National Nature Reserve

The best cycling routes around Allt Rhyd Y Groes National Nature Reserve

4.7

(9)

314

riders

23

rides

Touring cycling routes around Allt Rhyd Y Groes National Nature Reserve traverse a landscape characterized by significant elevation changes, deep valleys, and large reservoirs. The region features the Llyn Brianne Reservoir, a prominent water body, and areas like the Abergwesyn Valley, offering varied terrain for cyclists. This Welsh National Nature Reserve presents a mix of challenging climbs and scenic routes through its natural environment.

Best touring cycling routes around Allt Rhyd Y Groes National Nature Reserve

  • The most popular touring…

Last updated: May 8, 2026

7

riders

#1.

Llyn Briane Reservoir loop

39.8km

03:32

900m

900m

This difficult 24.8-mile touring cycling loop around Llyn Brianne Reservoir in the Cambrian Mountains offers dramatic scenery and challengin

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Hard

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

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

Hard

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

Hard

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

Hard
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Popular around Allt Rhyd Y Groes National Nature Reserve

MTB Trails around Allt Rhyd Y Groes National Nature Reserve

Hiking around Allt Rhyd Y Groes National Nature Reserve

Road Cycling Routes around Allt Rhyd Y Groes National Nature Reserve

Gravel biking around Allt Rhyd Y Groes National Nature Reserve

Running Trails around Allt Rhyd Y Groes National Nature Reserve

Tips from the Community

Mike French
May 3, 2025, Strata Florida Trail

Had a big off when a rut jumped out of nowhere. To be honest, I'm glad I had 2.4 tyres for most of Strata Florida right from the road.

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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 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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Built in 1913 the Rhandirmwyn Bridge links the two sides of the Towy valley by this rivetted girder road bridge. On the southern side you'll find the Towy Bridge Inn, a lovely riverside pub.

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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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An incredible stretch of road. Very isolated. Watch out for Land Rover gangs racing up to the Florida Strata road.

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The gravel here is really chunky, but fairly smooth when flat out on the descent. Be prepared to lift your bike over a gate at the top.

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Frequently Asked Questions

What is the general difficulty level of touring cycling routes in Allt Rhyd Y Groes National Nature Reserve?

The touring cycling routes in Allt Rhyd Y Groes National Nature Reserve are predominantly challenging, with 14 out of 22 routes rated as difficult. The landscape features significant elevation changes and deep valleys, making for demanding rides. There are also 7 moderate routes and 1 easy route available.

Are there any easy touring cycling routes suitable for beginners?

Yes, there is at least one easy touring cycling route in the area. While most routes are moderate to difficult, beginners can find options. For example, the region offers routes that navigate through valleys with less strenuous ascents, though specific easy routes are less common than more challenging ones.

Where can I find challenging touring cycling routes in the Allt Rhyd Y Groes National Nature Reserve area?

Many routes in the reserve offer significant challenges. For a demanding ride with extensive views, consider the Llyn Briane Reservoir loop, which covers 39.8 km with nearly 900 meters of elevation gain. Another difficult option is the Llyn Brianne Dam – View of Llyn Brianne Reservoir loop from RSPB Gwenffrwd-Dinas, offering panoramic views over 31.3 km.

Are there any long-distance touring cycling routes available?

Yes, for those seeking longer rides, the area provides several options. The View of Llyn Brianne Reservoir – The Towy Bridge Inn loop from Rhandirmwyn is a substantial 61.5 km route, typically taking over 5 hours to complete. Another long route is the Abergwesyn Valley – The Towy Bridge Inn loop from Pwll Yr Hyddod, spanning 58.2 km through varied terrain.

Can I find circular touring cycling routes around Allt Rhyd Y Groes National Nature Reserve?

Yes, many of the touring cycling routes in the area are circular, allowing you to start and end at the same point. Popular circular routes include the Llyn Briane Reservoir loop and the Dolauhirion Bridge – Llandovery Castle Ruins loop from Pwll Yr Hyddod, which offers a moderate 26 km ride.

Is parking available near the touring cycling routes?

Parking facilities are generally available at key access points around the Llyn Brianne Reservoir and near villages such as Rhandirmwyn. It's advisable to check specific starting points for designated parking areas, especially for popular routes.

Is public transport accessible for reaching the cycling trails?

Public transport options to Allt Rhyd Y Groes National Nature Reserve are limited due to its remote nature. While some local bus services might connect to nearby towns like Llandovery, direct access to trailheads often requires personal transport. Planning your journey in advance is recommended.

What is the best time of year for touring cycling in Allt Rhyd Y Groes National Nature Reserve?

The best time for touring cycling is typically from late spring to early autumn (May to September) when the weather is milder and daylight hours are longer. During these months, the roads are generally drier, and the scenic beauty of the valleys and reservoirs is at its peak. Winter cycling can be challenging due to colder temperatures, potential ice, and shorter days.

Are there any cafes or places to eat near the bike trails?

While the reserve itself is quite remote, you can find cafes and pubs in nearby villages and towns. Rhandirmwyn, for example, is a common starting point for routes and offers local amenities. The Towy Bridge Inn is also mentioned in some route names, indicating potential refreshment stops along certain trails.

What kind of wildlife can I expect to see while cycling?

Allt Rhyd Y Groes National Nature Reserve is known for its diverse wildlife. Cyclists might spot various bird species, including red kites, buzzards, and peregrine falcons. The remote valleys and woodlands also provide habitats for mammals such as otters, badgers, and deer, though sightings can be elusive.

What do other touring cyclists enjoy the most about touring cycling in Allt Rhyd Y Groes National Nature Reserve?

The area is highly rated by the komoot community, with an average score of 4.7 stars from 9 reviews. Reviewers often praise the stunning views of the Llyn Brianne Reservoir, the challenging yet rewarding ascents, and the sense of remoteness and tranquility found within the valleys and natural environment.

Are there any family-friendly touring cycling routes in the area?

Given the prevalence of difficult and moderate routes with significant elevation, truly easy, flat, and short family-friendly touring cycling routes are less common directly within the reserve. Families with older, experienced children might enjoy some of the moderate routes, but those with very young children or beginners should seek out the single easy route or consider shorter, less hilly sections of trails.

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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