_Here is a selection of Friends groups in Cardiff where there are websites.

Friends of Forest Farm
This Friends group was formed to contribute in whatever way possible to the protection and development of the Glamorgan Canal Local Nature Reserve and Forest Farm, and to promote the study of flora and fauna in their natural habitat. Website
Friends of Cefn Onn
Friends of Parc Cefn Onn was recently formed in order to provide this beautiful Cardiff park with some of the tender, loving care it so richly deserves. Website
Friends of Heath Park Woodlands
Friends of Heath Park Woodland have been established for more than 12 years and are one of a number of Friends’ groups run by Cardiff County Council supported by the active Ranger service. They carry out a variety of tasks, based on seasonal work such as tree planting in the autumn and winter and pond/clearance work in the early spring. In the autumn they also cut and rake away the grass in the wet grassland area near the King George V memorial pillars. This reduces the fertility of the area to promote more diverse plants and animals. Website
Friends of Howardian LNR
The Friends' Group was formed in 1989, by an enthusiastic group of local residents who work with Cardiff County Council to further improve the Reserve. Works continue today to develop Howardian Local Nature Reserve for its wildlife interest and public enjoyment. Website
Friends of Cardiff Dogs Home
The Friends is an independent group dedicated to supporting Cardiff Dogs Home and raising funds to improve the kennels. Other activities include raising the profile of Cardiff Dogs Home, volunteering, walks and talks, looking at good practice ideas with groups/staff  ... Website & Forum