Best route- anywhere in England

i did a 3 day ride along the lea river/regents canal/grand union canal which went from walthamstow to wendover in bucks all along towpath. total distance was about 66 miles, not much until you consider the amount of pubs and country vistas to check along the way... easily done on a fixed or SS MTB as there's no hills to tackle but plenty of bumpy towpath so small rims/road/track frame is a no-no unless you've got a pub ride that you don't care about... You can ride all the way to birmingham in a couple of days if you go for it but we were taking it very easy staying at hotels etc... I've got a google earth .kmz file if anyone is interested in doing it...

There are plenty of canal towpaths giving traffic free cycling, some of them are in better condition than others though. I've been thinking of doing some of the grand union canal, the bits I've visited in Nottinghamshire have really nice scenery.Also check out the Sustrans website for routes in any areas you're interested in.