Froggys ?
Hey Saintaw , Naso is calling you !
Wtf did you choose the period where I'm not in Normandy ??????
Bastige
! I'm on vacation 400km south of Normandie from the 10 to the 31

For normandie try to (at least) visit the beachs , st Mère l'Eglise,Bénouville (Pegasus Bridge) , Colleville and La Cambe
Try to go at Ouistreham , Honfleur (2 pretty nice towns)
But avoid at all cost any visit of Caen (destroyed at 90% during D-Day there is nothing to visit except the "superb" post-war building

And don't forget Bayeux tapestry if you can (I covered only the Calvados as it's the area where you will be)