Just thought I’d post an interesting note on the route, for anyone walking it this summer.
From Sunbiggin Tarn you are now recommended to take the southern route, down the road a short way, over the little bridge and then turn left onto the moorland, skirting the narrow beck and then along the narrow boggy path.
This is a much nicer route than the one to the north along the road past Mazon Wath. You get to experience a lonely wild mile or two of grassy moorland before joining the northern route just before Great Ewe Fell.
I will publish a route map in the C2C pages on Walking Places when I get back.