I could say something about the light at the end of the tunnel, but I don't think I'm in the dark.  This is the tunnel near Holloway, Derbyshire, which takes the Cromford Canal underneath Lea Wood.  Great to catch up with my 'usual' group, the One-Step Walkers, who are affiliated to the Ramblers, and to finish with a pint of bitter shandy at The Hurt Arms (haha) to repay them for allowing us to park there.

10.02 miles
3 hours 40 minutes
1526 ft ascent