In reply to Andy27:
Did this one 2 weeks ago.
Drive to Silecroft. Get train Silecroft-Ravenglas. Get another train (steam if you plan it) Ravenglas - Eskdale.
Couple of pints in Boot , walk eastwards towards Harter Fell, then southwards to Whitfell and follow the ridge all the way back to Black Combe and the car , we wild camped around the half way mark. 9 miles ish both days ... saw some scrambling opportunities and had plenty of solitude even on a bank holiday weekend.