Rainbow cloud

A 5 am start to catch the ferry and then the 11 hour drive to the Ardeche. Hard though it might be to see, this cloud was multicolourd and seemed to follow us for may kilometres. 
We went via Lyon, a route with the horrendous signpost after three hours driving that says 'Lyon 672'. Not very encouraging.
Arrival however was simple and there were no horror stories - that we are aware of yet - awaiting us.