Years ago my parents rented a house in a little town Normandy for about a week. We were able to make day trips to Bayeux, Mont St. Michel and the World War 2 beaches as well as various other places. I think it was July and we had no problem with anything being closed. However we adults had all been to France many times before. We spent a few days in Paris as well, because our kids hadn’t seen it. There’s something nice about staying in the country, but I can’t tell you not to go to Paris, or not to see at least one Loire chateau if you never have.