Yep, thats one of the navexes i've planned for a good spring or summer day (if we ever get one!) Its one of the "things" that everyone has to do from our place too...so i'm looking forward to running up to Howden Dam then all the way down again, out over Hathersage and back via Nottingham.
I'm wondering how low my instructor will let me go...knowing Op Chastise was one of the things which started my love affair with aircraft....