After a bit of hectic traffic in Morlaix I joined a greenway disused railway route for around 60km then moved onto the towpath of the Brest-Nantes Canal for the last 20km. You couldn't ask for a more traffic free ride.

The negatives were that there were still 700m of climbing, though all gradual, and in some places there was slippy mud - which almost pulled me off the bike a few times.