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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

(3)

358

runners

Corn Du summit – Pen y Fan loop from Beacons Reservoir

02:54

21.9km

890m

Running

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

Last updated: April 2, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Parking

Get Directions

3.36 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 …

Tip by

3.37 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 …

Tip by

3.38 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. …

Tip by

4.01 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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11.3 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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18.6 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 …

Tip by

19.5 km

View of Bannau Brycheiniog from the Summit Cairn

Highlight • Summit

this is a good spot for a breather and to take in the incredible views

Tip by

21.9 km

End point

Parking

Way Types & Surfaces

Way Types

8.70 km

6.78 km

4.14 km

1.88 km

185 m

< 100 m

Surfaces

7.41 km

7.04 km

3.24 km

3.02 km

1.14 km

Elevation

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

Highest point (860 m)

Lowest point (400 m)

Weather

Saturday 16 May

11°C

4°C

-- %

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Corn Du summit – Pen y Fan loop from Beacons Reservoir

Corn Du summit

Corn Du

Col between Corn Du and Pen y Fan

Welsh Mountain Ponies in Bannau Brycheiniog National Park

Taf Fechan Forest

Pen y Fan

View of Bannau Brycheiniog from the Summit Cairn

Nearby routes

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