Sgwrs gyda'r actor Owain Arthur, a ffeithiau am losgfynyddoedd gan Roy Humphreys. Actor Owain Arthur is in the studio, plus Roy Humphreys talks about volcanoes. Show more
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Sgwrs gyda'r actor Owain Arthur, a ffeithiau am losgfynyddoedd gan Roy Humphreys. Actor Owain Arthur is in the studio, plus Roy Humphreys talks about volcanoes. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
