Best first - the rough stuff ...
These are the routes my friends and I have followed for years now. Highlights:
• Perhaps the ultimate off-road tour in the UK: Scotland coast to coast
• The classic English coast-to-coast off-road style
• The Welsh north-south coast-to-coast is little-used gem in a neglected part of the UK.
A little gentler on the road ...
Great routes, nothing too rough off-road, classic cycle touring stuff.
Including a friendly coast-to-coast across England.