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Hiking trails & Routes
United Kingdom
Wales
South Wales
Llanigon

Black Mountain loop from Hay Bluff

Moderate

4.2

(6)

30

hikers

Black Mountain loop from Hay Bluff

02:30

8.01km

290m

Hiking

Hike the moderate Black Mountain loop from Hay Bluff in Bannau Brycheiniog National Park, featuring panoramic views and diverse terrain.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Brecon Beacons National Park

Waypoints

A

Start point

Parking

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1

1.23 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 …

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2

2.35 km

View from Hay Bluff Summit

Highlight • Trail

To the East are views across the Cats Back and onwards to the Malvern Hills and miles into England. To the West are views of Twmpa (Lord Hereford's Knob). If …

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3

3.40 km

Twyn Llech (Black Mountain) Summit

Highlight • Viewpoint

Twyn Llech (703m), also known as Black Mountain, is the only Marilyn to fall exactly on the Welsh–English border, straddling Brecknockshire (Powys) and Herefordshire.

The Black Mountain is the highest …

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B

8.01 km

End point

Parking

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Way Types & Surfaces

Way Types

3.40 km

1.77 km

1.51 km

1.32 km

< 100 m

Surfaces

8.00 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 (700 m)

Lowest point (480 m)

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Weather

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Tuesday 5 May

10°C

3°C

0 %

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Max wind speed: 7.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to complete the Black Mountain loop from Hay Bluff?

The Black Mountain loop from Hay Bluff is estimated to take approximately 2 hours and 30 minutes to 3 hours to complete. This duration can vary based on your pace, stops for photos, and weather conditions.

What is the terrain like on this hiking loop?

The terrain on this loop is varied. It generally starts with a clear, grassy path ascending towards Hay Bluff. Along the ridge, paths are well-surfaced, offering extensive views. However, sections can be wide and very waterlogged with numerous fords and wet patches, especially after rain. Good, waterproof boots are highly recommended.

Is the Black Mountain loop from Hay Bluff suitable for dogs?

Yes, the loop is generally dog-friendly. However, you will likely encounter wild horses, ponies, and sheep grazing freely in the area. It's essential to keep dogs on a lead, especially around livestock, to ensure their safety and respect the local wildlife.

Where can I park to access the trailhead for this loop?

The most common starting point is from the parking area at Hay Bluff. This car park can get busy, especially on weekends and during peak season, so arriving early is advisable.

What are the best times of year to hike this trail?

The best times to hike this loop are typically late spring, summer, and early autumn. During these seasons, you're more likely to experience clearer paths and better visibility for the panoramic views. Be prepared for rapidly changing weather conditions and stiff breezes on the ridges, regardless of the season.

Do I need a permit or pay an entrance fee to hike in Bannau Brycheiniog National Park?

No, there are no specific permits or entrance fees required to access the trails within Bannau Brycheiniog National Park, including the Black Mountain loop from Hay Bluff. Public access is generally free, but parking fees may apply at some car parks.

What notable landmarks or viewpoints will I see along the route?

This loop offers several stunning viewpoints. You'll pass by Hay Bluff, enjoy the View from Hay Bluff Summit, and reach Twyn Llech (Black Mountain) Summit. The trail also provides breathtaking panoramic views of the Wye Valley, the Brecon Beacons, and the Herefordshire countryside.

What kind of footwear is recommended for this hike?

Due to sections that can be wide, very waterlogged, and feature numerous fords and wet patches, especially across the high mountains, sturdy, waterproof hiking boots are highly recommended. This will ensure your comfort and safety on potentially boggy terrain.

Does this trail intersect with any other well-known paths?

Yes, portions of this route follow the historic Offa's Dyke Path. It also intersects with sections of the EuroVelo 2 - Capitals Route - part United Kingdom 2 and the National Cycle Network Route 42.

Is this loop considered a challenging hike?

This loop is generally rated as moderate. While the initial climb to Hay Bluff can be strenuous, the subsequent ridge walk is often more gentle. Hikers should have a reasonable level of fitness and be prepared for varied terrain and potentially rapidly changing weather conditions.

What should I bring with me for this hike?

It's advisable to bring waterproof hiking boots, appropriate layers for changing weather, a waterproof jacket, plenty of water, snacks, and a map or GPS device. Given the remote nature of some sections, a hiking app like komoot is recommended for navigation.

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