| Start out from Greater London around the Loughton/Chigwell end then try Chipping Ongar, Fyfield, Leeden Roding, Great Dunmow, Thaxted, Saffron Walden for a run along some very nice B roads. You can turn east towards Ipswich and follow the coast round. There's some nice places to stop at like Aldeburgh and Southwold, Norwich isn't bad for a city and the North Norfolk coast is nice, places like Blakeney, Wells-next-the-sea...there's always Hunstanton for a bike stop.
I'm not really local though so the Essex, Suffolk and Narfukkers'll be along in a minute with some better ideas I'm sure | 
Jools
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