Having been not known how to respond when off road cycling for the 1st time in months and hearing "you ought to try walking for a change" Andrew's comment struck a chord. Where do I get a badge with "I do all sorts of other things as well as what I'm doing now!" on it.
If you like a lower level challange I can recommend some interesting routes in Dorset. Unfortunatly and absolute classic on a farm track has had to be closed off. My alternative route over the barbed wire and round the field bondaries looked good until I encountered another right of way where somebody with a tractor had reconstructed the trenches from the battle of the Somme. Great fun just before a pub lunch.