The most memorable two-day trip I did started at Hardknott Castle. Walked up the Esk valley up to Great Moss- definitely a route less trod. From there we scampered up Scafell and dropped down to Sprinkling Tarn for a wildcamp. The next morning we followed Esk House, Esk Pike, Bowfell and then Crinkle Crags before dropping back down to Great Moss and back down to Hardknott. You could easily extend this by wildcamping in or around Lingmell on the other side of Scafell and using this as a base to explore great scrambling routes around Gable etc. You could even drop down to Wasdale Head to stay at the NT campsite for showers and pub grub?
Post edited at 08:33