I've been seeing warnings about not trying to take backpacks or large bags into the major attractions in Italy. It just says not to take a large bag. I don't know what they consider a large bag. I always travel with a packable backpack that is my day bag to hold water and any layers/rain gear needed for the day. It sounds like this won't work. Does anyone know what sized bags are permissible. I have to put something in my luggage and I don't know what.
Thanks in advance.