Corn Du summit – Pen y Fan loop from Beacons Reservoir

Routes

Running trails & routes

Corn Du summit – Pen y Fan loop from Beacons Reservoir

Hard

5.0

(5)

370

runners

Corn Du summit – Pen y Fan loop from Beacons Reservoir

03:02

22.1km

980m

Running

Hard run. Very good fitness required. Mostly runnable paths. Some sure-footedness required. The starting point of the route is right next to a parking lot.

Last updated: November 3, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Parking

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3.38 km

Corn Du

Highlight • Natural Monument

From the 2,864 feet (873 m) summit of Corn Du, you get spectacular views of Llyn Cwm Llwch directly below and over Wales stretching out below. The trail to this …

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3.38 km

Corn Du summit

Highlight • Summit

Corn Du is rarely climbed alone, but as a peak added to an expedition to Pen y Fan. The climb up is a great one though and the views from …

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3.41 km

Col between Corn Du and Pen y Fan

Highlight (Segment) • Mountain Pass

This easy col between Pen Y Fan and Corn Du is a gorgeous easy hill section no more than a few hundred metres long with minimal height gain and loss. …

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5.34 km

Cribyn Summit

Highlight • Natural Monument

At 2,608 feet (795 m), the summit of Cribyn boasts awe-inspiring views over Pen-y-Fan, looking towards the steep cliff that forms its eastern flank. When the weather is clear, views …

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11.4 km

Taf Fechan Forest

Highlight • Trail

Taf Fechan Forest's extensive reach covers the valley floor to the south of the Central Beacons massif in the Bannau Brycheiniog (Brecon Beacons) National Park. It is named after the …

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18.8 km

Welsh Mountain Ponies in Bannau Brycheiniog National Park

Highlight • Viewpoint

These Welsh mountain ponies roam freely across the Brecons Beacons and can often be found around the summit of Pen y Fan.

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18.8 km

Pen y Fan

Highlight • Summit

Chief of the Brecon Beacons and the highest summit in south Wales, Pen y Fan is a hugely popular peak with routes to the top to suit everyone from first …

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