Natur, bywyd gwyllt a chadwraeth, gan gynnwys trafodaeth ar awyr dywyll. Nature, wildlife and conservation, including a discussion on dark skies. Show more
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Natur, bywyd gwyllt a chadwraeth, gan gynnwys trafodaeth ar awyr dywyll. Nature, wildlife and conservation, including a discussion on dark skies. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
