Rode from home to Egglestone, then on to Middleton-in-Teesdale, then via Grassholme and Hury reservoirs to Barnard Castle and then home again via (some of) Sustrans route 52 (map).
Too slow though. I'm definately not doing the Hell O' The North fixed, but will give it a bash singlespeed.
Distance: 65 miles
Time: 7 hours
Weather: Nice and warm, sunny
Bike: Solitude fixie (with 45c tyres, 34:16)