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Cardiff Group

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

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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

Overview

Park in lay-by outside the village of Pencelli. Climb up Rhiw Bwlch y Ddwyallt before heading west to Carn Pica. Follow the ridge to Allt Lwyd, then head down past the edge of Talybont Forest to Talybont Reservoir. Cross the reservoir to the Taff Trail, then head back via the Usk Valley Walk to Pencelli.

Wednesday, 20 May 2026
Start time:
9:30 am
Estimated finish time:
4:30 pm
Difficulty:
Strenuous
Distance:
20.9km / 13.0mi
Ascent:
823m / 2700ft
Type:
circular

Park in lay-by on outskirts of  Pencelli LD3 7LX

Features

  • Refreshments available (Pub/cafe)
  • Car parking available

Starting point

Grid reference:
SO 09457 24762
Nearest postcode:
LD3 7LX
what3words:
snuggle.confronts.lectured
Start time:
9:30 am

Lay-by on outskirts of Pencelli

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