Y mae’r rhan yma o’r wefan wedi’i neilltuo i’ch hysbysu o’r newyddion i gyd sy’n berthnasol i Barc Cefn Onn. Ymwelwch yma’n gyson er mwyn dysgu am y gweithgareddau diweddaraf a’r rhai sydd ar y gweill.
Parc Cefn Onn News
This part of the web site is dedicated to keeping you up-to-date with all the news relevant to Parc Cefn Onn. Keep coming back here to learn about recent and future activities.
Outdoor Cardiff website – Cefn Onn Council news

Find out about Cardiff Council’s information on Cefn Onn, including how to hire the mobility trampers scooters, here.
Cefn Onn Spring Walk – Saturday 12 April 2025
Join the Rangers for a free brisk guided walk from Cefn Onn to Tranch Y Hebog to discover the spring flowers and other wildlife that abound this beautiful woodland on the edge of Cardiff (next to Thornhill & Lisvane train station on the Caerphilly line). Meet at Cefn Onn car park, CF14 0UE @ 10-12am. Wear sturdy shoes. Weather is set to be beautiful too!

Spring 2025 Newsletter now available
Cardiff Friends of Park Cefn Onn newsletter is now available with all the latest news updates.
Winter 2024-25 Newsletter now available
Cardiff Friends of Park Cefn Onn newsletter is now available with all the latest news updates.
January 2025 Workday
Sadly a low turnout Workday today for the first of 2025, with only 3 volunteers and Park Ranger Alec. However we still managed to clear a huge tree that had fallen across one of the main paths earlier this week. Well done team. [Before and after photos]


Workday dates 2025 announced
We are pleased to announce, in conjunction with Alec, Cardiff Council Park Ranger for Cefn Onn, our dates for 2025 (2-4pm).
If you feel like a volunteering a couple of hours a month this year– we will be delighted to see you. As past and current participants know we are a friendly group aiming to try and restore the Park to its past glories and leave it fit for future generations and you will receive a very warm welcome. We have a wide variety of tasks to suit all abilities, with equipment and tea/coffee provided.
2024 AGM: Monday 20th January 2025
Announcing our 2024 AGM: Monday, 20th January 2025 (a bit late this year!)
Old School Hall, Llwyn-Y-Pia Road, Lisvane: 19:00 – 19:30
The Friends were formed by local Thornhill and Lisvane residents to try and halt the deterioration of our beloved Country Park and bring it back to life.
We will be discussing our achievements and our plans for the year ahead. All are welcome attend (members and non-members), contribute to the discussions, and socialise with other Park users.
Being called an ‘Annual General Meeting’ is a legal requirement for us to continue and sounds very official, but don’t worry, we are very informal. Being an AGM, we must also have a minimum number of members attending, so if you can make it on the evening it would both demonstrate the support the Group has and be greatly appreciated.
Official small print: If you have any nominations for Committee posts (Chair, Vice-chair, Secretary, Treasurer and Committee Members) or suggested agenda items, please submit these for the attention of the Secretary by email to friendsofcefnonn@talktalk.net.
Photography Workshop in the Park (2/11/24)
Alec, the Cefn Onn Ranger, is holding a free photography workshop in the Park on 2nd November 2024. A walk around the park with hints and tips on improving photography. Ideal for beginners and all ages.
10am- 1pm. Meet in the card park
Don’t forget to bring your camera or mobile phone!
2023 AGM: Monday, 21st August 2023
Announcing our 2023 AGM: Monday, 21st August 2023
Old School Hall, Llwyn-Y-Pia Road, Lisvane: 19:00 – 19:30
All welcome
The Friends were formed by local Thornhill and Lisvane residents to try and halt the deterioration of our beloved Country Park and bring it back to life.
We will be discussing our achievements and our plans for the year ahead. All are welcome attend (members and non-members), contribute to the discussions, and socialise with other Park users.
Being called an ‘Annual General Meeting’ is a legal requirement for us to continue and sounds very official, but don’t worry, we are very informal. Being an AGM, we must also have a minimum number of members attending, so if you can make it on the evening it would both demonstrate the support the Group has and be greatly appreciated.
Official small print: If you have any nominations for Committee posts (Chair, Vice-chair, Secretary, Treasurer and Committee Members) or suggested agenda items, please submit these for the attention of the Secretary by email to friendsofcefnonn@talktalk.net.
Mr Prosser’s Garden talk – 18 July 2023
The Rhiwbina Society:
Rosie James’
Parc Cefn Onn – Mr Prosser’s Garden talk
19:30 Tuesday 18th July 2023, Beulah Rooms, Rhiwbina
Come and hear the fascinating history of our North Cardiff Parc.
Admission: £2 members, £4 guests. Tea and coffee included.