Route outline for walk po169:
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
Points of Interest/Notes on this walk:
The Tommy Jones Obelisk is dedicated to a young 5 year old boy who got lost during the night of August 4th, 1900. Despite an anxious search his remains were not discovered until September 1st, 1900.
Peaks, Summits and Tops reached on this walk:
![]() 2 Welsh Mountains |
![]() 0 Wainwrights |
![]() 4 Welsh Nuttalls |
![]() 0 Welsh Deweys |
![]() 0 Wainwright Outlying Fells |
![]() 1 Welsh Marilyn |
![]() 0 Bridgets |
Peak Bagging Statistics for this walk:
The highest point of this walk is Pen y Fan at 886m (2907ft). Pen y Fan is classified as a Welsh Mountain (Hewitt) (19th highest in Wales, 31st highest in England & Wales)
Pen y Fan is also known as a Welsh Nuttall (21st highest in Wales, 36th highest in England & Wales) and a Welsh Marilyn (10th highest in Wales, 259th highest in the UK).
The summit of Pen y Fan is marked by an Ordnance Survey Trig Point. Pen y Fan is the highest point in The Brecon Beacons National Park and the highest point in the county of Powys.
Completing this walk will also take you to the top of Corn Du at 871m (2859ft). Corn Du is also known as a Welsh Nuttall (25th highest in Wales, 43rd highest in England & Wales).
You will also reach the summit of Cribyn at 795m (2609ft). Cribyn is classified as a Welsh Mountain (Hewitt) (37th highest in Wales, 82nd highest in England & Wales)
Cribyn is also known as a Welsh Nuttall (47th highest in Wales, 99th highest in England & Wales). Cribyn means 'The Summit' in Welsh and is pronounced 'kree-bun'.
The summit of Cribyn is marked by a small cairn.
Along the way you will also bag:
- Fan y Big at 716m (2351ft). Fan y Big is known as a Welsh Nuttall (79th highest in Wales, 189th highest in England & Wales). Fan y Big means 'Beacon of the Beak' in Welsh and is pronounced 'van-uh-beeg'.
The summit of Fan y Big is marked by a stone slab resembling a diving board. Fan y Big was removed from the list of Welsh Hewitts (Welsh Mountains) due to insufficient prominence - August, 2018
You can find more walks near this one on these unique free-to-access Interactive Walk Planning Maps: (click/TAP to select)
1:25,000 scale OS Explorer Map (the ones with orange/yellow covers):
1:50,000 scale OS Landranger Map (the ones with pink/magenta covers):
Some Photos and Pictures from Walk po169 Corn Du, Pen y Fan, Cribyn and Fan y Big from Nant Cwm Llwch nr Brecon
In no particular order . . .

Mick and Rob, friends of 40 years make it to the top of a windswept Pen Y Fan

Corn Du and the Brecon Beacons from the summit of Pen y Fan just after sunset

Corn Du and the Brecon Beacons from the summit of Pen y Fan just after sunset

A very cold day but my boyfriend and I finally made it to the top of Pen y Fan summit

Me (70) and Carole (65) on Pen y Fan 2 days after our 45th Wedding Anniversary

Pen y Fan (far left) and Corn Du with Llyn Cwm Llwch tarn below from near the Tommy Jones Obelisk

Craig Cwm Cynwyn, Cribyn, Craig Cwm Sere, Pen y Fan and Corn Du from Fan y Big
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