Llynfi and Garw Valleys: Please register with walk leader

Cardiff Group

We are the Cardiff 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

Overview

From Blackmill the walk will cross to the Llynfi valley and onto the hamlet of Shwt, before climbing to the Garw valley above Ponycwmer. It then drops to Pont Y Rhyl before climbing again to Mynydd Llangeinor on the return.

The views from the walk are extensive and wonderful in all directions.

Wednesday, 1 July 2026

Start time:: 9:30 am
Estimated finish time:: 3:30 pm

Difficulty:: Strenuous
Distance:: 19.3km / 12.0mi
Ascent:: 823m / 2700ft
Type:: circular

Local grade: A

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Features

Car parking available

Starting point

Grid reference:: SS 93369 86745
Nearest postcode:: CF35 6DR
what3words:: brimmed.retina.piglets

Start time:: 9:30 am

At Blackmill turn in at the war memorial, follow the road round to the right and cross the bridge to the car park

Upcoming walks with Cardiff Group

The Forge Walk and Cambrian Way

Start:

Difficulty:: Leisurely

Distance:: 5.5 miles

Rail Ramble: Bargoed to Pengam via Pen y Fan Pond. Please register with leader.

Start:

Difficulty:: Moderate

Distance:: 12.0 miles

South Gower - PLEASE REGISTER WITH LEADER

Start:

Difficulty:: Strenuous

Distance:: 14.0 miles

Cardiff Central Strollers: International Sports Village Circular.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Caerphilly Mountain

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Punchbowl and Blorenge. Please register with the Walk Leader

Start:

Difficulty:: Moderate

Distance:: 12.0 miles

Pumping Station Eventually!!! Linear.

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

The Dowards, the Wye, and King Arthur’s cave. Please register with walk leader Sue J

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

The Kymin from Monmouth. Register with Walk Leader.

Start:

Difficulty:: Moderate

Distance:: 7.5 miles

Blaenavon to Pontypool. Linear. DETAILS TBC. Register with Walk Leader Rob S. 07590 570445.

Start:

Difficulty:: Strenuous

Distance:: 15.0 miles

Claire's Friday Morning Parc Cefn Onn Walk (woods, hills, countryside)

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers take the Porth Teigr Way.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

The Garth

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Clytha Circular (please register with walk leader)

Start:

Difficulty:: Moderate

Distance:: 9.0 miles

Whitchurch - Radyr, circular

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Blaen Llia circular. Please register with Walk Leader.

Start:

Difficulty:: Strenuous

Distance:: 15.4 miles

Rail Ramble - Neath to Port Talbot

Start:

Difficulty:: Moderate

Distance:: 11.0 miles

Strollers Linear Rail Ramble Tondu to Bridgend. Led by Rob J.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Barry Waterfront Circular

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Tintern and the Welsh bank of the Wye (please register with walk leader, text preferred)

Start:

Difficulty:: Moderate

Distance:: 11.8 miles

Glamorgan Canal Nature Reserve

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

The Ogmore and Garw valleys. Please register with the walk leader

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Cardiff Central Strollers: Reservoir Walk from Roath Park.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

The 'Old Place' - an Elizabethan mansion.

Historic Llantwit Major and the Heritage Coast

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Fan y Big from Pencelli. Please register with Walk Leader.

Start:

Difficulty:: Strenuous

Distance:: 10.0 miles

Sirhowy River north of Blackwood

Start:

Difficulty:: Leisurely

Distance:: 7.0 miles

CBI Cardiff Canals, Docks & Wetlands.

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Circular from Parc Cefn Onn to Craig y Alt

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Portishead circular

Start:

Difficulty:: Strenuous

Distance:: 13.5 miles

Claire's Friday Morning Parc Cefn Onn Walk (woods, hills, countryside)

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Linear to Whitchurch.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Sgwd Gwladys and Horseshoe Falls

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

The Journey. Please Register with Walk Leader - Text Preferred

Start:

Difficulty:: Strenuous

Distance:: 14.0 miles

Rhymney Riverside walk Machen to Llanbradach. Linear.

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Rhymney River Circular: Please register with the Walk Leader

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Cwm Sychan, Cwm Tyleri Area. DETAILS TBC. Walk Register with Walk Leader Rob S. (Text 07590 570445).

Start:

Difficulty:: Strenuous

Distance:: 14.0 miles

A Wander through the Woods around Castell Coch

Start:

Difficulty:: Moderate

Distance:: 5.0 miles

Claire's Friday Morning Parc Cefn Onn Walk (woods, hills, countryside)

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Cardiff Wetlands & beyond.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Explore Chepstow by Train

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Sirhowy Valley Country Park. Please Register with Walk Leader

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Whitchurch to Wenallt Woods looking for bluebells

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Llantwit Major - coastal walk

Start:

Difficulty:: Moderate

Distance:: 11.0 miles

Longtown circular via 2 Darrens and Crib y Garth. Please register with Walk Leader

Start:

Difficulty:: Strenuous

Distance:: 14.0 miles

Llanishen Circular

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Parc Cefn Onn Friday Walk led by Jean B.

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Castell Coch & Fforest Fawr. Circular.

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

Abercynon Circular - Please register with leader

Start:

Difficulty:: Moderate

Distance:: 12.0 miles

Linear Rail Ramble: Exploring Hengoed and Penallta area.

Start:

Difficulty:: Moderate

Distance:: 9.0 miles

Llantrisant Forest. Please register with Walk Leader

Start:

Difficulty:: Moderate

Distance:: 10.5 miles

Carn Pica Circular Walk. Please register with walk leader.

Start:

Difficulty:: Strenuous

Distance:: 13.0 miles

Caerphilly Mountain

Start:

Difficulty:: Leisurely

Distance:: 4.0 miles

Claire's Friday Morning Parc Cefn Onn Walk (woods, hills, countryside)

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Pumping Station & Back

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Lisvane to Cefn Mabley Circular. Please register with Walk Leader.

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Twmbarlwm from Cwmbran. Please register with Walk Leader,

Start:

Difficulty:: Moderate

Distance:: 12.2 miles

Little Skirrid and Big Skirrid (please register with walk leader, text preferred)

Start:

Difficulty:: Moderate

Distance:: 11.2 miles

Cwmdu - Four Pens ... Please register with Walk Leader

Start:

Difficulty:: Strenuous

Distance:: 13.5 miles

Taff Trail and Fforest Fawr

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Parc Cefn Onn Friday Walk led by Carol B.

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Linear to Penarth Pier.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Taff Trail - Stage 1 Cardiff Bay to Taffs Well

Start:

Difficulty:: Leisurely

Distance:: 9.0 miles

Carreg Yr Ogof. Please Register with Walk Leader.

Start:

Difficulty:: Strenuous

Distance:: 14.0 miles

Llanover Loop. Please Register with Walk Leader.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Llanvihangel Ystern Llewern. Register with Walk Leader.

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

Machen Forge Trail Grade C 4.5 miles

Start:

Difficulty:: Moderate

Distance:: 4.5 miles

Cardiff Central Strollers: Bute Park.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Brecon Town to Y Gaer via Battle

Start:

Difficulty:: Moderate

Distance:: 9.0 miles

Crickley Hill and the Cotswold Way (please register with walk leader, text preferred)

Start:

Difficulty:: Moderate

Distance:: 13.0 miles

Cefn-coed-y-cymmer to Pontsticill. Please register with walk leader,

Start:

Difficulty:: Moderate

Distance:: 10.4 miles

Llanbedr Horseshoe. Please register with Walk Leader.

Start:

Difficulty:: Strenuous

Distance:: 18.0 miles

Gwaelod (Not the Garth!)

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Parc Cefn Onn Friday Walk led by Jean B.

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Rail Ramble: Rhoose to Barry Island.Linear.

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Cardiff City Parks & Gardens

Start:

Difficulty:: Leisurely

Distance:: 4.0 miles

Cardiff Central Strollers: Pentyrch to Tongwynlais downhill. Linear.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Taff Trail - Stage 2. A linear walk from Taffs Well to Pontypridd

Start:

Difficulty:: Leisurely

Distance:: 9.0 miles

Grwyne Fawr Valley & Crug Mawr. Please Register with Walk Leader.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Dinas Powys circular

Start:

Difficulty:: Leisurely

Distance:: 7.0 miles

Claire's Friday Morning Parc Cefn Onn Walk (woods, hills, countryside)

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Linear to Insole Court. Catching bus back to City Centre.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Pontsticill circular

Start:

Difficulty:: Moderate

Distance:: 11.0 miles

Kymin and Wye Valley. Please register with walk leader.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Llynfi and Garw Valleys: Please register with walk leader

Start:

Difficulty:: Strenuous

Distance:: 12.0 miles

Explore North Rhymney Rhaslas Pond and the Bent Iron then south to Bargoed

Start:

Difficulty:: Moderate

Distance:: 11.0 miles

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

Join now for just £3.75 per month