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  4. Crai Reservoir

Crai Reservoir

Start:
Estimated Finish:
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Cardiff Group

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Overview

Crai reservoir will be the start point of our walk, and from there we will walk above and across the Cwm Crai valley to Forest Fach. Then towards Defynnog but turning back south along the ridge with great views of our route. 
PLEASE REGISTER WITH WALK LEADER

Wednesday, 4 June 2025
Start time:
9:45 am
Estimated finish time:
5:00 pm
Difficulty:
Strenuous
Distance:
22.5km / 14.0mi
Ascent:
518.2m / 1700ft
Type:
circular

This walk is described as strenuous because of pace and terrain. 

Features

  • Car parking available

Starting point

Grid reference:
SN 88713 21155
Nearest postcode:
LD3 8YY
what3words:
tender.producers.rules
Start time:
9:45 am

Heading south from Defynnog, parking is in a lay-by on the left, just past a left turn to Heol Senni.

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Distance:
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Difficulty:
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Difficulty:
Leisurely
Distance:
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Difficulty:
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Distance:
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Difficulty:
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Difficulty:
Moderate
Distance:
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Penarth Pier and Barrage

Start:

Difficulty:
Leisurely
Distance:
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Cross Keys to Cwm Felin fach and Mynydd y lan

Start:

Difficulty:
Moderate
Distance:
9.0 miles
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Start:

Difficulty:
Moderate
Distance:
10.5 miles
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Llanfrynach circular via Cribyn & Fan y Big. Numbers limited, please register with Walk Leader.

Start:

Difficulty:
Strenuous
Distance:
13.0 miles
Parc Cefn Onn

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Start:

Difficulty:
Moderate
Distance:
6.0 miles
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Start:

Difficulty:
Leisurely
Distance:
5.0 miles
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Penarth Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
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Start:

Difficulty:
Strenuous
Distance:
13.5 miles
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Start:

Difficulty:
Leisurely
Distance:
6.0 miles
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Difficulty:
Moderate
Distance:
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Start:

Difficulty:
Moderate
Distance:
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Start:

Difficulty:
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Start:

Difficulty:
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Distance:
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Start:

Difficulty:
Moderate
Distance:
10.0 miles
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Start:

Difficulty:
Moderate
Distance:
6.0 miles
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Start:

Difficulty:
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Distance:
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Start:

Difficulty:
Moderate
Distance:
12.0 miles
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Start:

Difficulty:
Strenuous
Distance:
13.7 miles
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Start:

Difficulty:
Moderate
Distance:
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Difficulty:
Moderate
Distance:
6.0 miles
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Difficulty:
Leisurely
Distance:
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Difficulty:
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Distance:
8.0 miles
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Difficulty:
Moderate
Distance:
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Start:

Difficulty:
Leisurely
Distance:
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Difficulty:
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Distance:
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Start:

Difficulty:
Leisurely
Distance:
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Parc Cefn Onn

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Difficulty:
Moderate
Distance:
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Difficulty:
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Distance:
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Start:

Difficulty:
Moderate
Distance:
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Difficulty:
Strenuous
Distance:
13.0 miles
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Start:

Difficulty:
Moderate
Distance:
8.0 miles
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Start:

Difficulty:
Moderate
Distance:
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Start:

Difficulty:
Strenuous
Distance:
12.0 miles
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Start:

Difficulty:
Easy
Distance:
4.0 miles
Parc Cefn Onn

Guest Leader Jean B. Friday Morning Parc Cefn Onn Walk (woods, hills, countryside)

Start:

Difficulty:
Moderate
Distance:
6.0 miles
Join the walk.

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Start:

Difficulty:
Leisurely
Distance:
5.0 miles
river

Coed y Bwnydd Hillfort from Clytha

Start:

Difficulty:
Moderate
Distance:
8.5 miles
Placeholder image

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

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Bus Interchange

CBI Linear: Pentyrch to Tongwynlais

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
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Bargoed Woodland Park. Grasslands and Bedwellte church

Start:

Difficulty:
Moderate
Distance:
8.0 miles
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Llangenny, Llanbedr and Table Mountain. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
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Longtown circular via 2 Darrens and Crib y Garth. Numbers limited, please register with Walk Leader

Start:

Difficulty:
Strenuous
Distance:
14.0 miles
Placeholder image

Radyr and Whitchurch Circular

Start:

Difficulty:
Leisurely
Distance:
5.0 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

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Start:

Difficulty:
Leisurely
Distance:
5.0 miles
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Barry Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

Blaen y Glyn, Central Beacons. Please register with walk leader in advance.

Start:

Difficulty:
Strenuous
Distance:
12.0 miles
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Brian Minshall Memorial Walk: Pontypridd - Rhondda Heritage Centre

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
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Vale of Henllys. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
10.0 miles
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Penallt,near Monmouth. Register with Walk Leader George S. 07722 656016.

Start:

Difficulty:
Moderate
Distance:
7.0 miles
Placeholder image

Gwaelod (Not the Garth!)

Start:

Difficulty:
Moderate
Distance:
5.0 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: Linear to Penarth Pier.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Glyn Tarell

Start:

Difficulty:
Moderate
Distance:
9.0 miles
Placeholder image

Circular walk from Crickhowell, below Table Mountain and across the Usk-Please register with leader.

Start:

Difficulty:
Moderate
Distance:
12.0 miles
Join the walk.

Wenallt and Forest Fawr

Start:

Difficulty:
Moderate
Distance:
8.0 miles
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Start:

Difficulty:
Moderate
Distance:
8.0 miles
Pontsticill reservoir

Pontsticill, Pentwyn and Talybont reservoirs. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
11.2 miles
Placeholder image

Crai Reservoir

Start:

Difficulty:
Strenuous
Distance:
14.0 miles
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Tongwynlais - Nantgarw Circular.

Start:

Difficulty:
Moderate
Distance:
5.0 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: Bute Park.

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
skirrid

Skirrid from Llanvihangel Crucorney

Start:

Difficulty:
Moderate
Distance:
8.5 miles
Placeholder image

Cotswold Way Villa and Hillforts. Please register with walk leader. ( text preferred)

Start:

Difficulty:
Moderate
Distance:
12.4 miles
Join the walk.

Penarth

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Fields and distant views

Monmouth to Welsh Newton circular walk. Please register with walk leader.

Start:

Difficulty:
Moderate
Distance:
11.0 miles
Join the walk.

Glangrwyney to Crug Mawr in the Black Mountains. Please register with walk leader.

Start:

Difficulty:
Strenuous
Distance:
14.2 miles
Join the walk.

Cardiff City Parks & Gardens

Start:

Difficulty:
Leisurely
Distance:
4.0 miles
Join the walk.

Cardiff Central Strollers: Guest Leader

Start:

Difficulty:
Leisurely
Distance:
5.0 miles
Join the walk.

Longwood Drive, Coryton Circular

Start:

Difficulty:
Leisurely
Distance:
6.0 miles
Placeholder image

The Garth and Creigiau from Pentyrch

Start:

Difficulty:
Moderate
Distance:
9.0 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