This week, she’s taking on her own epic challenge as she runs from Llanberis to Penyfan via the three Welsh Peaks – a total of 160 miles in three days.
Yr wythnos yma, mae hi’n wynebu ei her epig ei hun trwy redeg o Lanberis i Ben-y-fan gan ddringo Tir Chopa Cymru ar y ffordd – 160 o filltiroedd mewn tridiau.