So why are they doing this then?

Stef and Phil are fulfilling some life long ambitions to go conquer some long steep hills in the Alps and at the same time raise some cash along the way. They have chosen Action Medical Research as their charity. These guys fund medical research to beat the diseases that devastate the lives of so many of our children. So they reckon it's for a good cause. To find out more about the charity check them out here. https://www.action.org.uk