Ar Lan yr Afon Hafren
Elinor Gwynn a Jon Gower sy'n olrhain cwrs yr afon Hafren o'i haber i'w tharddle. Elinor Gwynn and Jon Gower follow the course of the Severn River from its mouth to its source.
Radio Cymru,3 episodes
Elinor Gwynn a Jon Gower sy'n olrhain cwrs yr afon Hafren o'i haber i'w tharddle. Elinor Gwynn and Jon Gower follow the course of the Severn River from its mouth to its source.
Radio Cymru,3 episodes
