St Gwynno Forest and Cwm Clydach from Llanwonno. Please register with walk leader.

Cardiff Group

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Overview

We will walk from Llanwonno through St Gwynno Forest, past Pistyll-goleu waterfall and along Nant Clydach. Then up and along the ridge above Abercynon, before going back across Nant Clydach and up, above Ynysybwl, then back.

Wednesday, 8 October 2025

Start time:: 10:00 am
Estimated finish time:: 4:00 pm

Difficulty:: Moderate
Distance:: 16.1km / 10.0mi
Ascent:: 426.7m / 1400ft
Type:: circular

Local grade: B

Some car sharing available.

Features

Car parking available

Starting point

Grid reference:: ST 03279 95833
Nearest postcode:: CF37 3PH
what3words:: serious.innovate.slips

Start time:: 10:00 am

St Gwynno Forestry car park. Turn right off Graigwen Road past the Brynffynon pub, and the car park is 0.2 miles up on the right

Upcoming walks with Cardiff Group

Shell Grotto and Folly Tower (open to the public this BH, free!!) Please register with Walk Leader

Start:

Difficulty:: Moderate

Distance:: 10.5 miles

Dinas Powy area

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

£1 Single Fare Rail Ramble: Merthyr Vale to Merthyr. Linear.

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

View from Coety mountain across Garn Lakes to Table mountain, Skirrid and Blorenge.

Varteg, Coety Mountain, Garn Lakes, Big Pit and the Dog Stone. Please register with walk leader.

Start:

Difficulty:: Moderate

Distance:: 11.0 miles

Erwood, Wye Valley (Register with Walk Leader)

Start:

Difficulty:: Moderate

Distance:: 15.0 miles

Cardiff Bay

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Cardiff Central Strollers: Glamorgan Canal Nature Reserve.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Fan Frynach

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

Botany Bay and Barbadoes. Please register with the walk leader

Start:

Difficulty:: Moderate

Distance:: 11.0 miles

Explore Hengoed and Penallta area

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Penrhys Pilgrimage, Groesfaen to Llandaff

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

Mynydd Dimlaith & Rhymney Valley Ridgeway. Please register with walk leader.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Craig y Nos circular. Numbers limited, please register with Walk Leader.

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: Canal, Dock & Bay.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Cwmparc Circular including Bomb Memorial Site.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Lonely Shepherd from Gilwern. Please Register with walk leader.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Coach Trip Ludlow & Mortimer Forest

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

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

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Radyr Circular

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Hatterrall Hill and Garn Wen. Please register with walk leader in advance.

Start:

Difficulty:: Strenuous

Distance:: 12.0 miles

Exploring Porthkerry and Cwm Ciddy

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Southerndown Ogmore circular.

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Llanharan to the Taff Ely Ridgeway. Please register with walk leader

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Cardiff Central Strollers: tackle ASDA Mountain, Ferry Road

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Tintern and Brockweir led by Leighton H.

Start:

Difficulty:: Moderate

Distance:: 9.0 miles

Llanthony and its Hills Contact Jim 07397 276530

Start:

Difficulty:: Moderate

Distance:: 9.5 miles

Barry Waterfront

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Defynnog to Fforest Fach and Crai. Please register with walk leader.

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Walk from Upper Blaen y Glyn

Start:

Difficulty:: Strenuous

Distance:: 8.4 miles

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

Start:

Difficulty:: Moderate

Distance:: 6.0 miles

Cardiff Central Strollers: Linear to Penylan Library.

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Southerndown - Ogmore Circular

Start:

Difficulty:: Moderate

Distance:: 8.0 miles

Chepstow, Tidenham tunnel and the Devils Pulpit. Please register with walk leader. (Text preferred)

Start:

Difficulty:: Moderate

Distance:: 11.8 miles

Llandaff to Cardiff Castle

Start:

Difficulty:: Leisurely

Distance:: 6.0 miles

Garth Circular

Start:

Difficulty:: Moderate

Distance:: 10.0 miles

Hills around Blaengarw. Please register with Walk Leader

Start:

Difficulty:: Strenuous

Distance:: 14.0 miles

Cardiff Central Strollers: Bute Park

Start:

Difficulty:: Leisurely

Distance:: 5.0 miles

Hanging around Cowbridge

Start:

Difficulty:: Moderate

Distance:: 7.0 miles

The River of Two Kingdoms. Please register with walk leader.

Start:

Difficulty:: Strenuous

Distance:: 13.7 miles