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Home » Blog » Sensational Waun Fach Walk Via The Dragon’s Back

Sensational Waun Fach Walk Via The Dragon’s Back

Written by: Gavin Evans Published on: April 4, 2021

waun fach walk via the dragon's back
Black Mountains, Brecon Beacons National Park

The Waun Fach walk is a 7 mile (12 km) circular trail via a ridge known as the Dragon’s Back, leading to the highest peak in the Black Mountains. Enjoy sweeping, majestic views across the peaks of the Brecon Beacons National Park and beyond   

Table of Contents show
Dragon’s Back walk to Waun Fach
Introduction
How to get there and where to park?
Waun Fach Walk – Step by Step
Castell Dinas (Dinas Castle)
The Dragon’s Back (Y Grib)
Pen Y Manllwyn
Waun Fach
Pen Trumau
Waun Fach Walk – Homeward Bound
Waun Fach Walk – Our Thoughts
Waun Fach Walk FAQs
How long is the Waun Fach walk?
How difficult is the walk?
How long does the walk take?
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Dragon’s Back walk to Waun Fach

Introduction

The Black Mountains are located in the eastern section of the Brecon Beacons National Park. They cover parts of the Welsh counties of Powys and Monmouthshire and also extend into the English county of Herefordshire. 

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The challenging Waun Fach walk leads you to the ruins of Castell Dinas, a Norman castle built at the same location as an Iron age fort. From there, it is on up the dramatic ridge known as the Dragon’s Back, ultimately leading to Waun Fach, the highest point in the Black Mountains.

Wherever you look, the views on offer are commanding whether taking in the numerous summits of the Black Mountains and Brecon Beacons or the sweeping verdant, tree-lined valleys flowing like a green sea between the baron peaks.  

How to get there and where to park?

The starting location that I used was the Waun Fach car park at The Dragons Back Pub & Bunkhouse. This is located on the A479 in the village of Pengenffordd between Talgarth and Crickhowell, in the northeast section of the Brecon Beacons National Park.

cars parked in the Dragon's Back Pub car park
Car park for the Dragons Back Pub & Bunkhouse

You do not have to visit the pub to park in the car park which would have been difficult anyway as the pub was closed when I visited, due to Covid restrictions. However, there is a £2 cash only fee for parking which you need to drop into a box at the side of the car park. 

To find the location with the utmost ease, check out the map below, click the direction link, enter your starting location and allow Google to guide you effortlessly to the walk start point.

Waun Fach Walk – Step by Step

Take the path from the car park signposted ‘Castell Dinas’, head left and follow the gravel path that runs parallel to the A479. Soon you will reach a small road where you will turn right up the hill. 

Upon reaching a wooden stile on your right-hand side, cross into the field and aim directly ahead of you up the steep incline to the ridge where you will discover the remains of Castell Dinas.

Castell Dinas (Dinas Castle)   

Castell Dinas offers a fascinating stop off on the walk owing to the location’s important archaeological background. An Iron Age fort once stood upon this hill and more recently a Norman Castle believed to be the highest located Norman castle in Wales. 

ruins of Castell Dinas and the Dragon's Back behind
Ruins of Castell Dinas with the Dragon’s Back in the background

When standing at this imposing location at a height of 1,476 feet (450 metres), it is of little surprise why this hill was selected as a place of ancient fortification on two separate occasions! 

The Dragon’s Back (Y Grib)

From Castell Dinas, you have a wonderful northeasterly view along the ridge of the Dragon’s Back giving a good sense of what the next stage of the Waun Fach walk has in store for you.

Drop down the north-easterly slope from Castell Dinas, cross the wooden style in the mini valley at the bottom and commence the first of three moderately steep inclines along the Dragon’s Back. 

waun fach walk along the dragon's back
A flat section along the Dragon’s Back

Thankfully, the steep sections as you are climbing Waun Fach are separated by relatively flat stretches, giving you ample opportunity to get some air back into those lungs between climbs!

view along the Rhiangoll Valley
Looking south along the Rhiangoll Valley
a view of the summit plateau on the waun fach walk
Looking up towards the summit plateau of Waun Fach

As you make your way along the Dragon’s Back walk, the views become ever more impressive. 

northerly view from the dragon's back
Northerly view towards the Wye Valley

To the south, the broad Rhiangoll valley opens up to display a patchwork-like network of tree-lined fields as far as the eye can see; to the north, the Wye Valley leads your gaze to the hills of central Wales; and to the west, the dramatic northern escarpment of Mynydd Troed slides away allowing the distant summit of Pen y Fan to show itself.

view of mynydd troed and pen y fan from the dragon's back
Looking south-westerly along the Dragon’s Back towards Mynydd Troed

Pen Y Manllwyn

Once you reach a pointed stone cairn, you have all but conquered the Dragon’s Back! Now, keep your eyes trained on the plateau directly ahead of you as this is your next destination.

pointed stone cairn on the waun fach walk
Pointed stone cairn indicating the top of the Dragon’s Back

The Waun Fach walk now leads you across a broad plateau before climbing steeply once again to the summit of Pen y Manllwyn.        

wild mountain pony on the waun fach walk
One of many wild mountain ponies along the route

You will know that you have reached Pen y Manllwyn as a stone cairn marks the location, as well as there being a well-defined trail leading north to south along the plateau’s ridge. 

moorland leading to Pen Y Manllwyn
Last steep climb to the summit of Pen Y Manllwyn

You will be happy to know that once you have reached this point, the toughest section of the walk is behind you.

stone cairn indicating summit of Pen Y Manllwyn
Summit of Pen Y Manllwyn. Now turn right…

Waun Fach

It is now just a flattish path followed by a gentle incline to the next plateau and the summit of Waun Fach. 

trail leading to the summit of waun fach
The flattish path leading to the summit of Waun Fach

This section of the Waun Fach circular walk also gives you the opportunity to enjoy the splendour of the westerly views down the valley from where you have come and thus appreciate your hiking achievement so far.

south westerly view of mynydd troed and pen y fan
Looking back from where you have come

The modest trig point indicating the summit of Waun Fach sits upon a broad rounded plateau, hardly making this the most commanding or exciting of mountain summits. What’s more, it is certainly not befitting of the second highest peak in southern Britain (811 metres), after Pen y Fan!

stone trig point at the summit of waun fach
A rather unimpressive trig point at the summit of Waun Fach

Pen Trumau

From the summit of Waun Fach, take the path that leads in a south-westerly direction at first, becoming southerly as the trail sweeps left around the top of the Grwyne Fechan valley. 

south westerly path leading from the summit of waun fach
Leaving the summit to the south-west

This gently descending section of the Waun Fach walking route soon brings you to the lower summit known as Pen Trumau, again marked by a stone cairn. 

The waun fach walk leads to the exposed peak on pen trumau
Exposed peat at the summit of Pen Trumau

You will certainly know that you have arrived at this point as you can not fail to notice the vast area of exposed peat that sits just to the right of the path. This was uncovered by a fire on Pen Trumau back in 1976.

distance view of sugarloaf mountain from pen trumau
The distinctive Sugarloaf Mountain sits on the horizon to the south-east

From here you can now catch sight of Mynydd Llangorse, just beyond the Mynydd Troed ridge to the south-west. More impressively, the south-easterly flowing Grwyne Fechan valley opens up beautifully to highlight the distinctive conical-shaped Sugarloaf Mountain, sitting proudly on the horizon.    

Waun Fach Walk – Homeward Bound

steep southerly descent from pen trumau
Steep descent to the south from Pen Trumau

From Pen Trumau, there is a short but steep descent to yet another stone cairn marking the meeting point for a number of trails. Choose the path that cuts back to your right across the open moorland. 

stone cairn on waun fach walk
Turn sharp right when you reach this stone cairn

Then, in approximately 200 metres, take the grassy trail as it veers off to the left, in a westerly direction. In a short while, the open moorland path on this stretch of the Waun Fach hike transitions to a narrow, rocky trail dropping sharply into the valley.

waun fach walk descends gradually across open moorland
Follow the grassy trail towards the valley

Upon reaching a metal gate, pass through, ensuring that you close the gate securely behind you. In around 500 metres you will reach a small country road where you will turn right. Continue along this road and when you reach the second sharp left bend, you will notice a dirt track directly ahead of you. 

westerly stone path on the waun fach walk
Final descent into the valley

Take this track and in approximately 800 metres you will find yourself back at your starting point and the Waun Fach walk is complete!

final stretch of the waun fach walk
Leave the road and join the dirt track on this corner

Waun Fach Walk – Our Thoughts

This hike was everything I had hoped for and more. It was certainly a challenge with the long staged climb along the Dragon’s Back. 

This was then nicely complemented by the gentle terrain of the summit plateau as well as the gradual sweeping descent on the homeward section.

In terms of scenery, you really had a bit of everything from dramatic mountain peaks to expansive glacial valleys.

I undertook this walk just after 0900 on a weekday morning at the end of March. At this time, there was one other vehicle in the car park. 

Upon returning, the car park was full. Owing to the limited number of spaces available, I would strongly recommend that you arrive early to ensure that you secure a space.

I thoroughly enjoyed the Waun Fach walk and would wholeheartedly recommend it to anyone looking for a challenging circular hike in this beautiful section of the Brecon Beacons National Park.

Waun Fach Walk FAQs 

How long is the Waun Fach walk?

This circular walking route measured 7.70 miles (12.4 km) using the Outdooractive App. 

How difficult is the walk?

I would consider this to be a moderate to challenging walk owing to the initial climb and the overall length of the hike.  

How long does the walk take?

I completed the Waun Fach walk in 4 hours 8 minutes including breaks. 

Have you completed the Waun Fach walk via the Dragon’s Back? If so, we would love to hear your thoughts about the hike in the comment box below. 

If you are yet to experience this hike and have any questions, also let us know…

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waun fach walk via the dragon's back

Categories: Hiking Destinations, Hiking in Europe, Hiking in Wales

About Gavin Evans

Hi, I'm Gavin — I’ve been fortunate enough to travel fairly extensively throughout my life but it was only in 2017 that Didem and I decided to start blogging about our travel experiences, focusing on hiking. We aim to inspire you to go hiking and enjoy the vast array of benefits that hiking offers. We hope you enjoy the journey!

Reader Interactions

Comments

  1. Karin A Mitchell says

    April 7, 2021 at 8:58 pm

    Stunning photos Gavin, and what a beautiful day. Gorgeous Wales, there’s nowhere quite like it.

    Reply
    • Gavin Evans says

      April 9, 2021 at 10:26 am

      Thanks Karin. I thoroughly enjoyed this hike and the scenery was certainly spectacular! Having the mountain to myself for long periods also helped enhance the experience!

      Reply
  2. Laurie says

    March 22, 2022 at 6:16 pm

    Hi Gavin,
    Just followed your route and had an amazing walk but I think I went wrong at the end, would you be able to provide more detail about the last leg please?! I took the sharp right at the last cairn after the saddle and walked to the open moorland and I think (?) I took the correct steep path down into the valley. I came to a lot of metal gates and got very lost at that point! I walked into a farm, went back on myself a bit and ended up trekking through a load of sheep filled fields before climbing over a barbed wire fence to get to the road. Couldn’t find the track/gate that appears at the end of your video. Please could you clarify it would be much appreciated!!

    Reply
    • Gavin Evans says

      March 23, 2022 at 5:04 pm

      Hi Laurie, Sorry you lost your way. Did you follow the exact route that I embedded on the blog post using the OutdoorActive app because this is the precise route I followed? If you click on the following link, you may just be able to pinpoint where you ventured off track:

      https://www.outdooractive.com/en/route/hiking-route/united-kingdom/waun-fach-walk-via-the-dragon-s-back-y-grib-/205504250/?utm_medium=referral&utm_source=embed&utm_campaign=embed-plugin-referral&utm_term=https%3A%2F%2Froamingspices.com%2F#dm=1

      I am thinking that you drifted left of the described trail on the way into the valley and ended up at one of the two farms – Blaenffinnant Farm or Pen-y-werlod Farm. These can both be seen if you zoom into the map. Hope this will clear things up for you.

      Best wishes

      Gavin

      Reply

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