After Thornhow End, we followed the longer (but easier) route up Birks as it gradually climbs to the col between Birks and St Sunday Crag. Then when on the very wide ridge, it's a case of a sharp left and heading back Eastwards.
We started to go into the cloud just after taking this photo and the wind really did start to whip up - so it was hats and coats on, on a day when I was expecting warm sunshine - that's the lakes for you !