C2Uchafbwyntiau Gwyliau'r Haf14/09/2011BBC Radio Cymru Duration: 1 awrFirst broadcast: Wed 14th Sep 2011, 22:00 on BBC Radio CymruLatest broadcast: Sun 18th Sep 2011, 23:00 on BBC Radio CymruGolwg nôl ar rai o uchafbwyntiau gwyliau'r haf. A look back at some of the summer highlights.GenresMusicEntertainmentBrandC2SeriesC2: Uchafbwyntiau Gwyliau'r Haf Source: BBC Online