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  4. Between Cardiff and Caerphilly. Please Register with Walk Leader.

Between Cardiff and Caerphilly. Please Register with Walk Leader.

Start:
Estimated Finish:
Cardiff group logo.

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
Join now for just £3.75 per month
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Overview

Exploring the ridges and woods between Cardiff and Caerphilly. From Cefn Onn Park climbing to Craig Llysfaen and then Cefn Onn. Then across farm land to Waterloo and on to Mynydd Rudry. Then climbing back to the Cefn Onn ridge to drop back down to the park. A varied walk with good views in good weather and options to shorten in bad.

Sunday, 21 December 2025
Start time:
9:30 am
Estimated finish time:
4:00 pm
Difficulty:
Moderate
Distance:
16km / 9.9mi
Ascent:
500m / 1640ft
Type:
circular

Local grade: B

Features

  • Car parking available

Starting point

Grid reference:
ST 17813 83609
Nearest postcode:
CF14 0UE
what3words:
under.path.scary
Start time:
9:30 am

Car park for Cefn Onn Park

Upcoming walks with Cardiff Group

Placeholder image

Cancelled: A Visit to Caerphilly Mountain. Please register with walk leader

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Mince Pie Walk

Christmas Mince Pie Walk - the Garth Baubles

Start:

Difficulty:
Strenuous
Distance:
10.5 miles
Radyr Golf Club

Christmas Mince Pie Walk 2025

Start:

Difficulty:
Moderate
Distance:
5.0 miles
Parc Cefn Onn

Claire's Friday Morning Parc Cefn Onn Walk Lisvane wander with visit to Reservoir café.

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Cardiff Central Bus Interchange

Cardiff Central Strollers: Llandaff Fields & Beyond. Circular.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Garth Hill

The Garth

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Park opposite these buildings

Southerndown, St Brides Major and Wick. Please register with Walk Leader

Start:

Difficulty:
Moderate
Distance:
11.6 miles
Join the walk.

Machen to Trethomas and return.

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Taff River Bridges Walk. Linear.

Start:

Difficulty:
Leisurely
Distance:
7.0 miles
Placeholder image

Wentwood Forest and Gray Hill. Please Register with Walk Leader.

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
Bus Interchange

Cardiff Central Strollers: Morrisons Christmas Lunch

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Roath Park & Reservoirs Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

Between Cardiff and Caerphilly. Please Register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
9.9 miles
Bus Interchange

Away from the shops.

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Bus Interchange

Cardiff Central Strollers: Victoria Park. Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Glamorgan Canal Nature Reserve & surrounding area.

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Cardiff Central Bus Interchange

Year End Mystery Ramble

Start:

Difficulty:
Leisurely
Distance:
6.0 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: Cardiff Bay & Wetlands. Circular.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
The Thin Man we see on the way.

Llantwit Major & Nash Point from Llantwit Major railway station. Led by Leighton.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Join the walk.

New Year walk - Penarth Cliffs and Cosmeston

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Pistyll-goleu waterfall

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

Start:

Difficulty:
Moderate
Distance:
10.7 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: Roath Park or Bust

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
tree

Abergavenny, river Usk and Llanwenarth church

Start:

Difficulty:
Moderate
Distance:
7.0 miles
Join the walk.

Twyn y Gaer & Cefn Lechid. Please Register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Join the walk.

Hailey Park, Radyr Wood, Glamorgan Canal

Start:

Difficulty:
Leisurely
Distance:
5.5 miles
Join the walk.

PENTWRCH VIA RADYR GOLF COURSE

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Join the walk.

Cardiff Central Strollers: Roath Park Reservoir Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Nantgarw Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Join the walk.

Following the Penrhys Pilgrimage and the Cambrian Way

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Join the walk.

Tidenham Chase and Two Rivers. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Join the walk.

Across the Afon Ebwy

Start:

Difficulty:
Strenuous
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
Mynydd Illtud

Mynydd Illtud and Libanus

Start:

Difficulty:
Leisurely
Distance:
8.0 miles
Join the walk.

Bedwas to Llanbradach circular. Please register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Rail Ramble

Linear: Machen to Caerphilly

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Join the walk.

Cockit Hill & Mynydd Llangorse. Please register with Walk Leader

Start:

Difficulty:
Moderate
Distance:
11.8 miles
Placeholder image

Friday Morning Parc Cefn Onn Walk led by Jean B.

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Cardiff Central Bus Interchange

Cardiff Central Strollers: Pontcanna & Llandaf Fields Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Waymark

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

Start:

Difficulty:
Moderate
Distance:
8.0 miles
Placeholder image

Rudry Mountain and the Ridge Way.

Start:

Difficulty:
Strenuous
Distance:
11.0 miles
Placeholder image

The Llantrisant Forest

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: City 4-sided clocks walk. Linear

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
One of the many waterfall on route.

Sgwd Gwladys & Horseshoe Falls

Start:

Difficulty:
Moderate
Distance:
7.0 miles
Placeholder image

Skenfrith - Three Churches walk.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
Join the walk.

HENSOL FOREST CIRCULAR (Vale Trails No 8 Magical Forest Walk)

Start:

Difficulty:
Moderate
Distance:
7.0 miles
Placeholder image

Winter Walk in Hills North of Cardiff

Start:

Difficulty:
Strenuous
Distance:
10.0 miles
Rail Ramble

Rail Ramble: Pen Garnbugail and Kite country

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
Placeholder image

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Placeholder image

Langstone & Penhow

Start:

Difficulty:
Moderate
Distance:
8.6 miles
Miners memorial in Senghenydd

Cefn Eglwysilan and Mynydd Meio. Please Register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
11.2 miles
Placeholder image

Goodrich Castle and Welsh Bicknor.

Start:

Difficulty:
Leisurely
Distance:
10.0 miles
Cardiff Central Bus Interchange

Cardiff Central Strollers: visit Insole Court. Linear.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Hailey Park Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

Ogmore by Sea: Pants, Quarries and Coasts. Please register with Walk Leader.

Start:

Difficulty:
Moderate
Distance:
9.0 miles
View

Llantrisant Forest. Please register with Walk Leader

Start:

Difficulty:
Moderate
Distance:
10.5 miles
Join the walk.

Penallt near Monmouth. 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
Bus Interchange

Cardiff Central Strollers: International Sports Village & ASDA Mountain. Circular.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Sugar Loaf

Sugarloaf from Abergavenny

Start:

Difficulty:
Moderate
Distance:
9.0 miles
Placeholder image

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

Start:

Difficulty:
Strenuous
Distance:
10.0 miles
Rail Ramble

Rail Ramble. Dinas Powys to Penarth via Cosmeston

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

The 2 Ogwrs

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
Cardiff Central Bus Interchange

Cardiff Central Strollers: Pontcanna & Llandaf Fields. Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Placeholder image

Raglan Circular - Please Register with Walk Leader

Start:

Difficulty:
Moderate
Distance:
8.0 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
Register for an account for FREE