I was over in England and Scotland in May touring but not on a bicycle. I was struck by how few roads we were on would be good for cycle touring. If i was going to tour in Britain i would do lots of research on paths and safe routes .Having said that we loved England, and Scotland was super ,especially the highlands. Do your homework before heading over with your bike .Lots of roads with no shoulder and rock walls or hedges on the edge of the road.