Dont miss Hon Fleur, a beautiful little town. When we stayed there, we were in a hotel on the main town square, within 100 ft from the entrance to the towns beautiful Catholic Church. Mr RooRoo and I spent a Saturday sipping wine in the hotel garden and literally watched Four Weddings and a Funeral in real life! All on the same day. Its a very busy parish.
And as the others have said, go to the various war memorials and cemetaries. They are very deeply moving.