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Mortimer Group

We are the Mortimer Ramblers. We open the way for everyone in our local community to enjoy the pleasures of walking.

Join the Ramblers and enjoy

  • unlimited free access to 50,000 Ramblers group walks
  • a library jam-packed with thousands of tried-and-tested routes
  • a welcome pack teeming with top tips plus our Walk magazine
  • exclusive discounts from our partners
  • knowing your support is opening up more places to walk and helping more people discover the joy of walking
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Overview

This is a long walk to one of the quieter peaks on the northern edge of the Bannau Brycheiniog National Park. It starts with a walk along the beautiful Nant Menasgin where we will see evidence of an old leat, a man made waterway diversion. We then have a long steady ascent along the ridge of Cefn Cyff toward Fan y Big. In good visibility the nearby Pen y Fan and Cribyn will be close on our right hand side with Corn Du eventually making an appearance. We then follow the northern escarpment before a gradual descent back to our starting point. We will stop regularly to enjoy the views to the north, especially if the weather is fair. Very few stiles. Paths generally grassy uneven and slightly boggy if there has been any rain. 

Saturday, 28 June 2025
Start time:
10:00 am
Estimated finish time:
4:30 pm
Difficulty:
Strenuous
Distance:
18.5km / 11.5mi
Ascent:
762m / 2500ft
Type:
circular

This is a long walk with plenty of ascent and rough ground underfoot. We have an alternative route should the weather forecast be poor at higher altitudes. Please note that although this route is shorter with less ascent it will be rough underfoot on open exposed ground so is not an easier alternative. Whatever the forecast please bring waterproofs, warm layers and plenty of water. Bring a packed lunch and snacks.

Booking essential as places will be limited.

Features

  • Car parking available

Starting point

Grid reference:
SO 07457 25779
Nearest postcode:
LD3 7AZ
what3words:
famed.masks.digits
Start time:
10:00 am

There is plenty of roadside parking around the village but this is clearly a popular starting point for walks in the Beacons so it may pay to get there early

Join the Ramblers and enjoy

  • unlimited free access to 50,000 Ramblers group walks
  • a library jam-packed with thousands of tried-and-tested routes
  • a welcome pack teeming with top tips plus our Walk magazine
  • exclusive discounts from our partners
  • knowing your support is opening up more places to walk and helping more people discover the joy of walking