I have a friend who really wants to accompany me on a river cruise from Paris to Normandy. But my limited experience, in general, in traveling in Europe is that it is difficult for those with mobility issues. That said, has anyone specifically taken the Paris to Normandy river cruise on Tauck (or any of the other lines; they all seem to have similar ones), and could comment on whether or not the excursions to the sites would be problematic for someone who has a motor scooter? Thanks