Corn Du
871m (2859ft)
Corn Du is in The Brecon Beacons Area, The Brecon Beacons, Powys, Wales
You can walk to the top of Corn Du by using any of these 8 route maps:
Walk po101 Pen y Fan from Pont ar Daf
The shortest, easiest way up Pen y Fan
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Vital Statistics:
| Length: | 4ml (6.25km) |
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| Ascent: | 1,736ft (487m) |
| Time: | 3.25hrs |
| Grade: |  (Moderate) |
Route Summary:
Pont Ar Daf Car Park - Blaen Taf Fawr - Bwlch Duwynt - Pen y Fan - Craig Cwm Llwch - Corn Du - Pen y Fan - Bwlch Duwynt - Craig Gwaun Taf (Bwlch Duwynt) - Blaen Taf Fawr - Pont Ar Daf Car Park
Walk po107 Y Gyrn, Corn Du and Pen y Fan from The Storey Arms Outdoor Centre
A less travelled route up Pen y Fan
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Vital Statistics:
| Length: | 5ml (8km) |
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| Ascent: | 1,736ft (529m) |
| Time: | 3.75hrs |
| Grade: | (Moderate) |
Route Summary:
The Storey Arms Outdoor Centre - Y Gyrn - Tommy Jones Obelisk - Craig Cwm Llwch - Corn Du - Pen y Fan - (Penyfan) - Bwlch Duwynt - Craig Gwaun Taf (Bwlch Duwynt) - Blaen Taf Fawr - The Storey Arms Outdoor Centre
Walk po158 Pen y Fan from The Storey Arms Outdoor Centre
The easiest(!) way to climb Pen y Fan
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Vital Statistics:
| Length: | 5.25ml (8.5km) |
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| Ascent: | 1,736ft (529m) |
| Time: | 3.75hrs |
| Grade: | (Moderate) |
Route Summary:
The Storey Arms Outdoor Centre - Y Gyrn - Tommy Jones Obelisk - Craig Cwm Llwch - Corn Du - Pen y Fan - (Penyfan) - Bwlch Duwynt - Craig Gwaun Taf (Bwlch Duwynt) - Blaen Taf Fawr - The Storey Arms Outdoor Centre
Walk po136 Corn Du and Pen y Fan from Nant Cwm Llwch near Brecon
Simply fantastic views - pick a nice day
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Vital Statistics:
| Length: | 7ml (11km) |
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| Ascent: | 2,288ft (697m) |
| Time: | 5 hrs |
| Grade: |  (Moderate) |
Route Summary:
Nant Cwm Llwch - Brecon - Llyn Cwm Llwch - Tommy Jones Obelisk - Craig Cwm Llwch - Corn Du - Pen y Fan - (Penyfan) - Cefn Cwm Llwch - Heolfanog - Cil-rhew - Pont Rhydybetws - Nant Cwm Llwch
Walk po104 Pen y Fan and Cribyn from Nant Gwdi
Superb views - pick a nice day
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Vital Statistics:
| Length: | 8ml (12km) |
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| Ascent: | 2,629ft (801m) |
| Time: | 5½ hrs |
| Grade: | (Moderate) |
Route Summary:
Nant Gwdi - Cefn Cwm Llwch - Pen y Fan - Corn Du - Pen y Fan - (Penyfan) - Craig Cwm Sere - Cribyn - Bryn-teg - Pant - Plas-y-gaer - Nant Gwdi
Walk po100 Pen y Fan from Lower Neuadd Reservoir
Popular classic walk
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Vital Statistics:
| Length: | 8.5ml (13.5km) |
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| Ascent: | 2,402ft (732m) |
| Time: | 5½ hrs |
| Grade: | (Moderate) |
Route Summary:
Lower Neuadd Reservoir - Bwlch ar y Fan - Cribyn - Pen y Fan - (Penyfan) - Corn Du - Bwlch Duwynt - Craig Gwaun Taf (Bwlch Duwynt) - Graig Fan Ddu - Lower Neuadd Reservoir
Walk po127 Fan y Big, Cribyn, Pen y Fan and Corn Du from Lower Neuadd Reservoir
Unsurpassed views from this high level route - pick a clear day
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Vital Statistics:
| Length: | 10ml (16km) |
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| Ascent: | 2,850ft (869m) |
| Time: | 6½ hrs |
| Grade: |  (Hard) |
Route Summary:
Lower Neuadd Reservoir - Bwlch ar y Fan - Fan y Big - Cribyn - Pen y Fan - (Penyfan) - Corn Du - Bwlch Duwynt - Craig Gwaun Taf (Bwlch Duwynt) - Graig Fan Ddu - Twyn Mwyalchod - Lower Neuadd Reservoir
Walk po169 Corn Du, Pen y Fan, Cribyn and Fan y Big from Nant Cwm Llwch nr Brecon
Simply fantastic - but pick a nice clear day
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Vital Statistics:
| Length: | 10.5ml (17km) |
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| Ascent: | 3,256ft (992m) |
| Time: | 7.25hrs |
| Grade: | (Hard) |
Route Summary:
Nant Cwm Llwch - Brecon - Llyn Cwm Llwch - Tommy Jones Obelisk - Craig Cwm Llwch - Corn Du - Pen y Fan - (Penyfan) - Craig Cwm Sere - Cribyn - Craig Cwm Cynwyn - Fan y Big - Bailea - Afon Cynrig - Pant - Plas-y-gaer - Nant Gwdi - Heolfanog - Cil-rhew - Pont Rhydybetws - Nant Cwm Llwch
Interactive Walking Maps
See Corn Du and the surrounding tops on our unique, downloadable, PDF Peak Bagging Map:
NB: Whether you print off a copy or download it to your phone, this PDF Peak Baggers' Map might prove incredibly useful when your are up there on the tops and you cannot get a phone signal.
See Corn Du and the surrounding tops on our free-to-access 'Google Style' Peak Bagging Maps:
The Brecon Beacons Area of Bannau Brycheiniog (The Brecon Beacons National Park)
Less data - quicker to download
The Whole of Bannau Brycheiniog (The Brecon Beacons National Park)
More data - might take a little longer to download
You can find Corn Du & all the walks that climb it on these unique free-to-access Interactive Walk Planning Maps:
1:25,000 scale OS Explorer Map (orange/yellow covers):
1:50,000 scale OS Landranger Map (pink/magenta covers):
Fellow go4awalkers who have already walked, climbed, scaled, summited, hiked & bagged Corn Du
Stephanie Doyle walked up Corn Du on December 2nd, 2025 [with] Friend [weather] Wet, & windy, bursts of sun - Great views
Craig Barrell climbed it on August 25th, 2025 [with] solo [weather] sunny
Melfyn Parry bagged it on September 4th, 2024 [from/via/route] Started walk from car park in the Tar Fechan forest, SO 036170. Tarmac road taken up to Lower Neuadd reservoir, which is now disused, crossed a footbridge & climbed up the grassy slope to reach the ridge at a cairn SO 019182, turned right & followed easy path for about 2 miles to reach the summit of Craig Gwaun Taf. From here it is an easy walk to the top of Corn Du & then Pen y Fan (about 25mins to gain the two tops). From Pen y Fan dropped down steep path to meet Beacons Way & then steep ascent to the top of Cribyn. Turned right & followed ridge, along Cambrian Way to Bwlch ar y Fan before another steep path up to Fan y Big. From here continue along ridge to the junction of the path back to Bwlch y Fan along Craig Cwmoergwm. From this junction I dropped down the grassy slope to the Roman Road at SO 034196 & followed the path back to the car park. [with] On my own [weather] Cool breeze with sunny spells & dry. Excellent visibility. - A really nice walk, would definitely do this one again. Stunning views.
Hazel Gilbert hiked Corn Du on April 10th, 2002 [with] Lawrence
Erin Ryan summited on August 31st, 2021 [weather] Cloudy on top
To add (or remove) your name and experiences on this page - Log On and edit your Personal Mountain Bagging Record
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Photographs & Pictures of views from, on, or of, Corn Du
Corn Du and the Brecon Beacons from the summit of Pen y Fan just after sunset
Craig Cwm Cynwyn, Cribyn, Craig Cwm Sere, Pen y Fan and Corn Du from Fan y Big
Waun Rydd summit cairn with Corn Du and Pen y Fan (The Brecon Beacons) in the background
Me striding out across Craig Cwmoergwm with Corn Du (centre - distance), Pen y Fan, Cribyn amd Fan y Big (far right).
Corn Du and the Brecon Beacons from the summit of Pen y Fan just after sunset
. . . see all 31 walk photographs & pictures of views from, on, or of, Corn Du
Send us your photographs and pictures on, of, or from Corn Du
If you would like to add your walk photographs and pictures to this page, please send them as email attachments (configured for any computer) along with your name to:
and we shall do our best to publish them.
(Guide Resolution = 300dpi. At least = 660pixels (wide) x 440 pixels (high).)
You can also submit photos via our Facebook Page.
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