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Fan Frynych and Craig Cerrig Gleisiad National Nature Reserve

Explore Fan Frynych’s rugged summit and the dramatic cliffs of Craig Cerrig Gleisiad in this rich, glacially-carved nature reserve within the Brecon Beacons.

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Fan Frynych, known as 'Ox Hill Beacon' in Welsh, is a striking peak within the Brecon Beacons National Park, marked by a trig point at its 628m summit. It forms part of the Craig Cerrig Gleisiad and Fan Frynych National Nature Reserve, a dramatic landscape of cliffs, glacial valleys, and rare alpine flora. This reserve offers steep hikes, panoramic views of the surrounding Brecon Beacons including Pen y Fan, and a rich natural and archaeological heritage.

A brief summary to Fan Frynych

  • Ox Hill Beacon, Brecon, LD3 8NP, GB
  • Duration: 2 to 5 hours
  • Free
  • Environment icon Outdoor
  • Mobile reception: 4 out of 5
  • Monday 12 am-12 am
  • Tuesday 12 am-12 am
  • Wednesday 12 am-12 am
  • Thursday 12 am-12 am
  • Friday 12 am-12 am
  • Saturday 12 am-12 am
  • Sunday 12 am-12 am

Local tips

  • Wear sturdy hiking boots for steep and uneven terrain, especially on the ascent through heather and bilberry.
  • Bring a detailed map and compass as some footpaths to Fan Frynych’s plateau are not waymarked.
  • Visit in late summer to see the hillsides covered in vibrant heather bloom.
  • Use the picnic site near the reserve entrance for a rest, and plan for refreshments at the nearby visitor centre.
  • Be prepared for rapidly changing weather and strong winds at higher elevations.
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Getting There

  • Car

    Driving from Brecon, take the A470 south for approximately 11 kilometers to reach the large lay-by adjacent to the reserve entrance. Parking is limited and can fill quickly on weekends. The drive takes about 15-20 minutes. No parking fees apply.

  • Bus

    Take the local bus service towards Merthyr Tydfil from Brecon, disembarking at the YHA Brecon Beacons stop on the A470. From there, it is a 500-meter walk along the road to the reserve entrance. Bus services run several times daily, with a one-way fare around £3-£5.

  • Hiking

    For a longer trek, hike from Brecon along the Taff Trail and Beacons Way, covering about 10-12 km one way. The terrain includes steep sections and moorland paths. Suitable for experienced walkers with proper equipment. Allow 4-6 hours depending on pace.

Fan Frynych location weather suitability

  • Weather icon Any Weather
  • Weather icon Rain / Wet Weather
  • Weather icon Clear Skies
  • Weather icon Windy Conditions
  • Weather icon Cold Weather
  • Weather icon Mild Temperatures

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Discover more about Fan Frynych

A Distinctive Peak in the Brecon Beacons

Fan Frynych, translating to 'Ox Hill Beacon' in Welsh and pronounced 'van-vrinic', stands at 628 meters (2062 feet) as the northernmost peak of the Fforest Fawr massif in South Wales. Its summit is marked by an Ordnance Survey trig point, a classic feature for British hills and mountains. The peak offers commanding views across the Brecon Beacons National Park, including sights of Pen y Fan, the highest peak in South Wales, and the distant Black Mountains. Fan Frynych’s rugged terrain and exposed moorland make it a rewarding destination for hikers seeking solitude away from the busier neighboring peaks.

The National Nature Reserve’s Geological and Ecological Richness

Fan Frynych is part of the Craig Cerrig Gleisiad and Fan Frynych National Nature Reserve, a 156-acre protected area renowned for its dramatic glacially-carved landscape. The reserve’s amphitheatre-like cliffs of Craig Cerrig Gleisiad were formed during the last ice age, around 18,000 years ago, when glaciers sculpted the valley and left steep rock walls. A massive landslide later reshaped the slopes, adding to the rugged character of the terrain. This reserve is home to rare arctic-alpine plants found at their southernmost UK location, and supports diverse wildlife including peregrines, kestrels, red grouse, and ring ouzels.

Historical Footprints Amidst Natural Beauty

Archaeological evidence reveals that the area around Fan Frynych has been inhabited for thousands of years. Remains of Iron Age huts, a Roman road, and subsequent farm settlements highlight the long-standing human connection to this landscape. The reserve’s wild and remote atmosphere preserves these historical traces, inviting visitors to reflect on the deep time layers beneath their feet while enjoying the natural environment.

Hiking Experiences and Scenic Highlights

Visitors can explore the reserve via waymarked walks starting near the A470 road, which climbs steeply through heather and bilberry to reach the moorlands of Fan Frynych. The routes offer a mix of challenging ascents and rewarding panoramic views, with the chance to see wild horses and other wildlife. The Beacons Way, a 159-kilometer long-distance trail, skirts the southern edge of the reserve, providing access to remote and rugged terrain. The summit of Fan Frynych is quieter than its more famous neighbors, making it a peaceful spot for lunch or contemplation. The nearby Craig Cerrig Gleisiad cliffs create a striking backdrop and enhance the sense of wilderness.

Seasonal Changes and Visitor Amenities

The reserve’s character shifts with the seasons: spring and summer bring wildflowers and abundant birdlife, while late summer’s heather bloom turns the hillsides a vibrant purple. Facilities include a small picnic site near the reserve entrance, with toilets and a café available a short drive away at the Brecon Beacons National Park Visitor Centre in Libanus. The site’s proximity to the A470 makes it accessible, though visitors are advised to prepare for steep climbs and variable weather conditions typical of upland Wales.

Conservation and Sustainable Access

As a designated National Nature Reserve, Craig Cerrig Gleisiad and Fan Frynych is managed to protect its unique habitats and species. Visitors are encouraged to follow Leave-No-Trace principles to preserve the fragile alpine flora and maintain the reserve’s natural beauty. The area supports sustainable tourism with public transport options nearby and well-maintained paths to minimize environmental impact.

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