Norwich to Portsmouth Ferry to Bilbao 14 days touring Spain and Portugal then the ride back through France Will have put a few miles on the MV4S by the time I get back.
Have a great trip, we did similar routes pre-covid then gave up the riding back through France because it always seemed to rain as we got to the border.
It is called the Costa Verde for a reason. Make sure you have some good waterproofs, just in case. Some beautiful mountain roads to be explored. English language is not as prevalent in that part of Spain as it is in the south. Have a great time.
Have a great trip. Looking forward to some pics ! Just wondering whether you always have to carry some cash in those mountainous regions ? - with card readers sometimes struggling in mountainous regions, requiring some ready cash to pay the bill !