>>4672 By mountaineering/scrambles I guess you mean strenuous and occasionally scary fellwalking rather than anything requiring specialist climbing equipment.
There is apparently a way to climb Jack's Rake up Pavey Ark in the Langdales which is supposed to be exhilarating but the look of it is a bit too much for me.
An excellent long walk with some scrambles is Scafell Pike from the Langdales. Some of the final ridges while not as dramatic as Striding Edge are the kind of thing you will find yourself on all fours on at times. And the views are incredible. Setting off from Dungeon Ghyll it's a seven or eight hour walk at least so may be best done in summer.
