I came in and left the region through Gare de Saint-Nazaire. When I arrived, it was my first time…read moreso far west in France and compared to Gare Montparnasse, it is much smaller. This is obviously because Gare Montparnasse services the huge metropolitan of Paris, which there are less people and travelers in general coming to Saint-Nazaire.
The station is pretty self-explanatory, with some self-service kiosks for you to buy tickets but should be in doubt, do yourself the favor of going into the office with the glass wall to talk to someone. I am unsure if there are many English-speaking representatives to help out any of you who may be lacking in French fluency so hopefully you have friends or family to help you out.
When I came back to this train station to leave Brittany and head back to Charles de Gaulle, it was the coldest morning of my entire trip there and while this is no fault of the train station itself, it was quite cold waiting for the train on the platform. Before that, we waited inside and even grabbed some pastries from the bakery that is on the left side when you walk in the station. I got a pain aux raisins for the second time in France while AT got the pain au chocolat again. It seems maybe the universe is realigning... I am quite sure they weren't made on-site because of the size of the space (it looked to be only a storefront), but regardless, our pastries were of excellent quality.