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South Wales
Carmarthenshire

Llanfair-Ar-Y-Bryn

The best dog-friendly hikes and walks around Llanfair-Ar-Y-Bryn

4.4

(134)

853

hikers

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hikes

Dog friendly hiking trails around Llanfair-Ar-Y-Bryn traverse a diverse landscape of river valleys and rolling hills, extending towards the Brecon Beacons National Park and the Cambrian Mountains. The region features prominent natural attractions such as the Llyn Brianne Dam and Reservoir, offering scenic routes. Hikers can also explore wooded gorges and waterfalls within areas like the Gwenffrwd-Dinas Nature Reserve.

Best dog friendly hiking trails around Llanfair-Ar-Y-Bryn

  • The most popular dog friendly hiking route is Llyn Brianne Dam Crossing – Llyn Brianne Dam loop from Rhandirmwyn Bridge, a 8.4 miles (13.5 km) trail that takes 3 hours 48 minutes to complete. This moderate route offers expansive views of the Llyn Brianne reservoir.
  • Another top favourite among local hikers is The Towy Bridge Inn – Twm Siôn Cati's Cave loop from Rhandirmwyn, a moderate 7.4 miles (12.0 km) path. This trail leads through varied terrain, including woodlands and historical points of interest.
  • Local hikers also love the Rhandirmwyn Bridge – The Towy Bridge Inn loop from Rhandirmwyn, a 2.7 miles (4.4 km) trail leading through river valleys, often completed in about 1 hour 11 minutes.
  • Hiking around Llanfair-Ar-Y-Bryn is defined by serene river valleys, rolling hills, and the scenic Llyn Brianne Reservoir. The network offers options for different ability levels, from easy riverside strolls to more challenging ascents.
  • The routes in Llanfair-Ar-Y-Bryn are highly rated by the komoot community with an average score of 4.4 stars from over 120 reviews. More than 800 hikers have used komoot to explore Llanfair-Ar-Y-Bryn's varied terrain.

Last updated: July 7, 2026

4.4

(17)

66

hikers

#1.

Llyn Brianne Dam Crossing – Llyn Brianne Dam loop from Rhandirmwyn Bridge

13.5km

03:48

270m

270m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Popular around Llanfair-Ar-Y-Bryn

The Dragon's Back – running the spine of Wales

Other adventures around Llanfair-Ar-Y-Bryn

The Dragon's Back – running the spine of Wales

Running Collection by

Jen & Sim Benson

Tips from the Community

Adam Suschitzky
December 29, 2025, Fallen Trees

Climb around the fallen trees

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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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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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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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Largest man made lake in mid wales

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This attractive RSPB site has a circular footpath adjacent to a river with beautiful rock cascades and old mossy trees. It is also home to the Twm Sion Cati's cave. All worth a look off of the bike.

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CLH
August 29, 2022, The Towy Bridge Inn

Fab but the roads over the top are NOT ROADS they are farm tracks. We had to carry our bikes over styles and push them through over animal tracks Would have broken a wheel otherwise However a fab experience none the less TIP: always check the pub is actually open and what time they close

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Frequently Asked Questions

How many dog-friendly hiking trails are available around Llanfair-Ar-Y-Bryn?

There are several dog-friendly hiking trails around Llanfair-Ar-Y-Bryn, with 5 routes specifically curated for you and your four-legged companion. These range from easy strolls to moderate hikes, ensuring options for various fitness levels.

Are there any easy dog walks suitable for families or less experienced hikers?

Yes, Llanfair-Ar-Y-Bryn offers easy dog-friendly walks perfect for families or those seeking a gentle outing. For example, the Rhandirmwyn Bridge – The Towy Bridge Inn loop is an easy 4.4 km route, and another similar Rhandirmwyn Bridge – The Towy Bridge Inn loop is 4.5 km, both offering pleasant riverside experiences.

Can I find circular dog walks in the area?

Absolutely. Many of the dog-friendly trails around Llanfair-Ar-Y-Bryn are circular, allowing you to start and end at the same point. Examples include the Llyn Brianne Dam Crossing loop and the Twm Siôn Cati's Cave loop, providing varied scenery without retracing your steps.

Are there any trails that feature waterfalls or significant natural landmarks?

Yes, you can explore trails that lead to impressive natural features. The Rhaeadr Valley Waterfall loop is a moderate 10.2 km hike that takes you to a beautiful waterfall. Additionally, the region boasts the dramatic waterfalls within the Gwenffrwd-Dinas Nature Reserve, known for its steep, wooded gorge.

What are some interesting historical or cultural sites I can visit with my dog near the trails?

You can combine your dog walk with a visit to historical sites. The Twm Siôn Cati's Cave loop takes you near the legendary Twm Siôn Cati's Cave. The Llandovery Castle Ruins are also nearby, offering a glimpse into the region's past, though check specific dog access policies for the ruins themselves.

Are there specific rules for dogs in nature reserves like Gwenffrwd-Dinas or around Llyn Brianne?

When hiking with your dog in nature reserves like Gwenffrwd-Dinas or around Llyn Brianne, it's generally recommended to keep dogs on a lead, especially during nesting seasons or near livestock. This helps protect local wildlife and ensures a safe experience for everyone. Always look for local signage for specific regulations.

Can I find trails with water features where my dog can cool off?

Many trails in the Llanfair-Ar-Y-Bryn area follow rivers and pass by reservoirs, offering opportunities for dogs to cool off. The Llyn Brianne Dam Crossing loop explores the scenic Llyn Brianne Reservoir, and the Wolf's Leap on the River Irfon is a notable deep pool, though caution is advised with strong currents.

What do other hikers say about the dog-friendly trails in Llanfair-Ar-Y-Bryn?

The dog-friendly trails around Llanfair-Ar-Y-Bryn are highly regarded by the komoot community, with an average rating of 4.4 out of 5 stars from over 120 reviews. Hikers often praise the quiet, diverse landscapes, and the opportunity to explore with their dogs in a natural setting.

Are there any trails that offer panoramic views suitable for dogs?

While specific viewpoints might require dogs to be on a lead, many trails in the region offer expansive views. The uplands extending into the Brecon Beacons National Park and the Cambrian Mountains provide numerous opportunities for scenic vistas. For example, the area around Llyn Brianne offers stunning reservoir views, and higher points like Pen y Garn-goch Summit provide panoramic outlooks.

Where can I find parking for dog-friendly hikes in Llanfair-Ar-Y-Bryn?

Many trailheads in the Llanfair-Ar-Y-Bryn area, especially those starting from villages like Rhandirmwyn or near popular attractions like Llyn Brianne, offer designated parking areas. It's advisable to check specific route details on komoot for parking information relevant to your chosen trail.

Are there any dog-friendly pubs or cafes near the hiking trails?

The Towy Bridge Inn, mentioned in several route names, is a local establishment that often welcomes hikers and their dogs, providing a convenient stop before or after your walk. It's always a good idea to call ahead to confirm their current dog policy.

What is the best time of year to go dog hiking in Llanfair-Ar-Y-Bryn?

Spring and autumn generally offer the most pleasant conditions for dog hiking in Llanfair-Ar-Y-Bryn, with milder temperatures and beautiful scenery. Summer can be lovely but ensure you carry plenty of water for your dog. Winter hikes are possible, but trails can be muddy or icy, requiring appropriate gear and caution.

Most popular routes around Llanfair-Ar-Y-Bryn

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