I think this is at the top of Pavey Ark, with two new Skyline members both of whom are far too fit, and two old ones!  We visited High Raise and Harrison Stickle as well before deciding that we were quite wet enough, and in the old folks' case exhausted enough, to come down and pass an hour in the New Dungeon Ghyll.  The part that completely did me in was the hour's near vertical climbing right at the start, I never recovered.