Clare Balding gets serious in this new series of Ramblings as she discovers what it takes to be a more adventurous walker. Today she joins Ursula Martin who walked over three thousand, seven hundred miles, around Wales in an eighteen month period. After being treated for ovarian cancer she decided to walk to her medical appointments from her home in mid-Wales to the hospital in Bristol. Ursula then just carried on walking, raising money for research into the condition and spreading the word about diagnosis. Today she takes Clare on small section of her favourite walk, along Glyndwr's Way in Powys, Mid Wales, starting just outside Llangadfan, they walk for about eight miles to Llanbrynmawr, just west of Welshpool , a few miles south of Snowdonia National park. The route takes them through farmland, onto open moorland and into a pine forest, where the moss covered trees allow their imaginations to run wild. Ursula spent many nights rough sleeping but she also describes the incredible kindness and generosity she received from total strangers who offered her meals, accommodation and the greatest gift of all; transporting her backpack to her next destination. She explains to Clare the joy and pain she found in walking day after day across the country she has adopted as her own.