Rebecca Mainwaring and family at the top of Pen Y Fan - one of a number of fundraisers she undertook to raise money for Morriston Hospital's Children's Ward where she was treated as a toddler for a brain tumour
Rydym yn croesawu gohebiaeth a galwadau ffôn yn y Gymraeg neu'r Saesneg. Atebir gohebiaeth Gymraeg yn y Gymraeg, ac ni fydd hyn yn arwain at oedi.