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  4. Circular from Cefn Onn to Black Cock, Nant y Brynau, Taff Trail & Fforest Fawr

Circular from Cefn Onn to Black Cock, Nant y Brynau, Taff Trail & Fforest Fawr

Start:
Estimated Finish:
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  • a library jam-packed with thousands of tried-and-tested routes
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Overview

East from Cefn Onn via woods and fields to the Black Cock to follow a delightful wooded path by Nant y Brynau to join the Taff Trail to ascend to Fforest Fawr returning by the Wenallt area to the start point. 

 

Wednesday, 23 April 2025
Start time:
9:30 am
Estimated finish time:
3:00 pm
Difficulty:
Moderate
Distance:
16.1km / 10.0mi
Ascent:
396.2m / 1300ft
Type:
circular
Website:
https://www.cardifframblers.org.uk/walks

Local Grade: B  

Starting point

Grid reference:
ST 17800 83581
Nearest postcode:
CF14 0UE
what3words:
pads.dimes.film
Start time:
9:30 am

entrance gate to Parc Cefn Onn

Upcoming walks with Cardiff Group

Parc Cefn Onn

Claire's Friday Morning Parc Cefn Onn Walk: East to Coed Coesau-whips

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

Cardiff Central Strollers: Roath Park - Waterloo Gardens Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Fan Frynach via Glyn Tarell

Start:

Difficulty:
Moderate
Distance:
9.0 miles
Join the walk.

Ridges and woods north of Cardiff. Please register with the walk leader

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Join the walk.

Glamorgan Canal Nature Reserve

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Rail Ramble

Rail Ramble: Bargoed via Kite Country and Taf Bargoed to Ystrad Mynach

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

Cardiff Central Strollers: Marconi calling.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Penarth Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Garth Hill and Castle Coch

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Join the walk.

Barry Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Part 3 Rhymney Riverside walk Pengam to Llanbradach. Linear.

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Dunraven

St Brides Major, Dunraven Bay and Wick. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
10.7 miles
Join the walk.

Old St Mellons / Michaelstone / Bassaleg Loop - Please register with leader

Start:

Difficulty:
Strenuous
Distance:
13.4 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

Cardiff Central Strollers: Glamorgan Nature Reserve.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
The Thin Man

Llantwit Major & Nash Point

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Join the walk.

Mynydd Machen

Start:

Difficulty:
Moderate
Distance:
12.0 miles
Join the walk.

Rhydyfelin - Pontypridd Lido

Start:

Difficulty:
Easy
Distance:
5.0 miles
Join the walk.

Hensol Forest Circular (Vale Trails No 8 Magical Forest Walk).

Start:

Difficulty:
Moderate
Distance:
7.0 miles
Join the walk.

Penhow and Gray Hill

Start:

Difficulty:
Strenuous
Distance:
12.0 miles
Join the walk.

Heritage Coast from Llantwit Major along the coast and back inland. Please register with Walk Leader

Start:

Difficulty:
Moderate
Distance:
12.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Placeholder image

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Caerphilly Mountain

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Join the walk.

Brynna woods, Taff Ely Ridgeway and Hirwaun Common. Please register with walk leader

Start:

Difficulty:
Moderate
Distance:
13.0 miles
Join the walk.

Longwood Drive Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Rail Ramble

Rail Ramble. Llantwit Major, Colhuw Beach and Llanmaes. Register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Placeholder image

Abersychan, Cwmteleri and Coety mountain. Please register with walk leader

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Join the walk.

Cardiff Central Strollers visit Insole Court. Linear.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Ogmore by Sea. Vale Trails Walk 1

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Join the walk.

Caerphilly and the Rhymney Valley Ridgeway

Start:

Difficulty:
Moderate
Distance:
10.9 miles
Join the walk.

Nantgarw Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Craig Yr Allt Area

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

Cardiff Central Strollers: Pontcanna and Llandaf Fields Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Rest Bay and Kenfig Nature Reserve

Start:

Difficulty:
Leisurely
Distance:
8.0 miles
View from Mynydd y Cymmer

Trehafod, Porth and Dinas

Start:

Difficulty:
Strenuous
Distance:
10.0 miles
Placeholder image

Cancelled: Waterfall Country from Pontneddfechan. Please Register with Walk Leader

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Join the walk.

Penarth Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Rail Ramble

Part 4: Rhymney Riverside walk Machen to Llanbradach. Linear.

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Placeholder image

Parc Cwm Darran, Cefn y Brithdir, Cefn Gelligaer. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

Cardiff Central Strollers: Cardiff Bay.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Roath Park Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

Ogmore Forest

Start:

Difficulty:
Moderate
Distance:
13.0 miles
Join the walk.

Wenallt Woods Circular

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Above Mitchel Troy

Mitchel Troy to Penallt. Please register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Join the walk.

Llanvihangel Ystern Llewern. Register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
7.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

Cardiff Strollers: Pentwyn.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
View from Cefn Llechid

Cefn Llechid.

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Placeholder image

Around Caerphilly Mountain

Start:

Difficulty:
Moderate
Distance:
9.0 miles
Join the walk.

Cardiff Central to Llandaff North via Insole Court. Linear.

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Southerdowm, Coed y Bwl, Ogmore

Start:

Difficulty:
Moderate
Distance:
9.0 miles
Placeholder image

Forest of Dean Rail Ramble from Lydney

Start:

Difficulty:
Strenuous
Distance:
14.0 miles
Placeholder image

Llantwit Major, Gileston and coast

Start:

Difficulty:
Moderate
Distance:
12.0 miles
Placeholder image

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
wiggly wood

Darran Valley 10 Trail

Start:

Difficulty:
Moderate
Distance:
10.5 miles
Placeholder image

Nant y Draenog and Gelligroes Mill. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Join the walk.

Roath Park Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

Llanover Loop

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Placeholder image

Forest of Dean

Start:

Difficulty:
Strenuous
Distance:
13.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Placeholder image

Cardiff Central Strollers: Bute Park

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Placeholder image

St Brides Major. Vale Trails Walk 10

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Placeholder image

Carn Pica from Pencelli. Please register with walk leader.

Start:

Difficulty:
Strenuous
Distance:
11.0 miles
View from Craig Pen-rhiw-llech

Parc Cwm Dare via Maerdy and Cwmaman. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
10.5 miles
Rhoose Point

Rail Ramble and Coastal Walk

Start:

Difficulty:
Strenuous
Distance:
13.0 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Cardiff Central Bus Interchange

Cardiff Central Strollers: International Sports Village Circular.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Placeholder image

Wye Valley circular via Tidenham Tunnel. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
11.8 miles
Join the walk.

Hailey Park to Insole Court

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Cardiff Central Bus Interchange

Cardiff Central Strollers take the Porth Teigr Way.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Placeholder image

Sugar Loaf from Abergavenny. Please register with walk leader (text preferred)

Start:

Difficulty:
Moderate
Distance:
11.2 miles
Join the walk.

Cross Keys to Cwm Felin fach and Mynydd y lan

Start:

Difficulty:
Moderate
Distance:
9.0 miles
Placeholder image

Wye Valley: Castles and Bluebells. Please register with walk leader

Start:

Difficulty:
Moderate
Distance:
10.5 miles
Placeholder image

Llanfrynach circular via Cribyn & Fan y Big. Numbers limited, please register with Walk Leader.

Start:

Difficulty:
Strenuous
Distance:
13.0 miles
Join the walk.

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Penarth Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

Blaenavon Roundabout. Please register with walk leader.

Start:

Difficulty:
Strenuous
Distance:
13.5 miles
Join the walk.

Circular from Cefn Onn to Black Cock, Nant y Brynau, Taff Trail & Fforest Fawr

Start:

Difficulty:
Moderate
Distance:
10.0 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 £3.58 per month
Register for an account for FREE