An excellent write up and a few additional places to explore on future trips.
Funnily enough, my other half and I must have been criss-crossing your path over the weekend; we headed out to St Valerie on Friday, headed to Le Poix de Picardie and Le Treport on Saturday (went past the chateau in your photos at Arrest). Not far past Arrest, there was a village that seemed to be filled with one large chateau after another, however, we unfortunately did not stop for as many photos as you did, so don't have much more than a couple of photos of the bikes parked in the town centre in Desvres and a few beets in St V.
Returning on the Sunday, the weather was less than ideal, and about 10 miles from the ET terminal, Tracey complained her bike 'felt odd' to ride. Stopping, we discovered the culprit was a flat rear, quickly replenished by a can of tyre weld, but on the return to the garage yesterday received confirmation the 1,000 mile-old tyre was beyond repair and replaced with a new one.
Other than that, it was a successful first trip for the CB750 and hopefully the new tyre will last beyond the July trip to Brittany...