In Honfleur we stayed right in the historic center at l’Hotel le Dauphin les Loges. No AC, but even with daytime temps over 100 we didn’t need it - they provided fans and it cooled off enough in the evening. Le Breard was one of our favorite meals in France. Try to be here for one of the market days surrounding the very unique wooden church.
In Bayeux we stayed at Le Lion D’Or - very nice rooms, and a sumptuous breakfast. Big for a French hotel, so not the most personable. But parking is available, another plus.
The tapestry and associated recording is wonderful. It helps to know a bit of backdrop about the history of war between England and France through the Hundred Years’ War and beyond but obviously not necessary.
We did not have time for the Bayeux cathedral.
We spent a full day at the D Day beaches. I have been several times, and it never fails to move. This time we went to Ste-Mère-Église and especially liked the Airborne museum. The Utah Landing Beach museum is powerful. If you’re not aware there are like dozens of musems from Caen to the beaches. You’ll have to pick just a couple. Make sure to leave time for the cemeteries and Overlord Museum itself, a bit of American territory on French soil.
I think it’s a mistake to skip Mont St Michel. It’s one of my favorite places in the world. Read a bit about Medieval Europe, the pilgrimmage industry, and the contested history of the place between Brittany and Normandie. Then wander up the winding streets, and imagine the millions of pilgrims and tourists before you who have wandered the same streets, seeking salvation, safe haven, or just a beautiful view. Then tour the abbey on top. It’s beyond spectacular.