A clockwise route to Ely heading out via Cottenham and Coveney and returning via Upware. There are great views of Ely cathedral from the higher ground at Coveney.
This route has two off-road sections - the Cam towpath out of Cambridge and the riverside path out of Ely. Both sections have reasonable surfaces when dry but get puddles after heavy rain. The route avoids the narrow section of NCN51 in Ely and also avoids the tricky footbridge with steep steps on Lodes Way.