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United Kingdom
Wales
South Wales
Monmouthshire
Crucorney

Twmpa & Hay Bluff loop from Llanthony Priory

Hard

91

runners

Twmpa & Hay Bluff loop from Llanthony Priory

03:37

28.4km

790m

Running

Embark on a challenging jogging adventure with the Twmpa & Hay Bluff loop from Llanthony Priory. This difficult route spans 17.7 miles (28.4 km) and involves a significant elevation gain of 2590 feet (790 metres), typically taking around 3 hours and 36 minutes to complete. You will traverse varied terrain,…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

A

Start point

Parking

Get Directions

1

240 m

Llanthony Priory

Highlight • Religious Site

What a fantastic place. Touch of history.

Tip by

2

12.2 km

Rhos Dirion summit

Highlight • Natural Monument

Rhos Dirion is a summit in the Black Mountains. It is the highest point on the Rhos Dirion-Chwarel y Fan ridge and the summit is marked by a trig point. Rhos Dirion is a UK-listed Nuttall.

Tip by

3

14.4 km

Twmpa (Lord Hereford’s Knob)

Highlight • Viewpoint

Twmpa, or Lord Hereford's Knob, is a mountain in southeast Wales, forming a part of the great northwest scarp of the Black Mountains. It lies 1.86 miles (3 km) west …

Tip by

4

17.4 km

Hay Bluff

Highlight • Viewpoint

This is a beautiful area and is popular with hikers, paracenders, bikers and the general population at large. There is a narrow single track road, with ample passing places, that …

Tip by

B

28.4 km

End point

Parking

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Way Types & Surfaces

Way Types

15.8 km

10.0 km

2.32 km

296 m

Surfaces

20.9 km

3.05 km

2.29 km

2.16 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (710 m)

Lowest point (220 m)

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Weather

Powered by Foreca

Sunday 5 July

26°C

12°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Frequently Asked Questions

How challenging is the Twmpa & Hay Bluff loop for jogging?

This loop is considered a challenging and strenuous route, primarily described as a hard hike. While experienced trail runners might find sections suitable for jogging, be prepared for significant elevation changes, steep climbs (especially at the start), and varied terrain. It requires very good fitness and sure-footedness.

What is the terrain like on the Twmpa & Hay Bluff loop?

The terrain is diverse, featuring unpaved paths, gravel sections, and natural ground. You'll encounter well-worn pathways for much of the route, but some parts, particularly the descent from Twmpa, can be boggy. Sturdy shoes are essential due to the varied and sometimes uneven surfaces.

Where can I park to start the Twmpa & Hay Bluff loop?

The trail typically starts from Llanthony Priory. You can find parking available in the vicinity of the priory, which serves as an excellent historical backdrop for your adventure.

Is navigation difficult on this trail?

Navigation can be tricky in places, as some paths are intermittent or not perfectly clear, especially after descending from Twmpa. It's highly recommended to carry an OS map or use a reliable hiking app/GPS, as mobile signal can be unreliable in some areas.

What are the main points of interest along the route?

You'll pass several notable landmarks. The route starts at the historic Llanthony Priory. You'll also reach the summits of Twmpa (Lord Hereford’s Knob) and Hay Bluff, offering incredible views. Another highlight is Rhos Dirion summit.

What kind of views can I expect on the Twmpa & Hay Bluff loop?

The loop offers breathtaking panoramic views across the Welsh and English countryside. From the ridgelines, you can see across the Vale of Ewyas, Olchon Valley, and the northern flanks of Bannau Brycheiniog. On clear days, it's even possible to see as far as Pen-y-Fan. The landscape features heather-covered moorland and rocky outcrops.

Is the Twmpa & Hay Bluff loop dog-friendly?

Yes, the trail is generally dog-friendly. However, as much of the route crosses open moorland and farmland, it's crucial to keep dogs under close control, preferably on a leash, especially during lambing season or when livestock are present. Always follow the Countryside Code.

What is the best time of year to jog the Twmpa & Hay Bluff loop?

Spring and autumn often provide the most pleasant conditions with cooler temperatures and vibrant scenery. Summer can be beautiful but exposed sections offer little shade. Winter can be very challenging due to harsh weather, ice, and snow, requiring appropriate gear and experience.

Do I need any permits or pay entrance fees for this trail in Bannau Brycheiniog National Park?

No, you do not need specific permits or to pay entrance fees to access the trails within Bannau Brycheiniog (Brecon Beacons) National Park, including the Twmpa & Hay Bluff loop. However, standard parking fees may apply at designated car parks.

Does the Twmpa & Hay Bluff loop connect with other long-distance trails?

Yes, sections of this route coincide with several well-known paths. You will find parts of the Offa's Dyke Path and the Cambrian Way along the loop, offering opportunities to explore further.

Are there any facilities or places to eat near the trailhead?

Yes, Llanthony Priory itself has a pub within its grounds, offering a unique spot for refreshments before or after your journey. The nearby town of Hay-on-Wye also provides a wider range of cafes, pubs, and accommodation options.

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