This will be our third trip to France, but the first time we will rely on trains to get from place to place. Should we buy tickets in advance from SNCF, or just get the the station early, or a day or two before, and get tickets?
Our train journeys will be:
* Bordeaux to Bergerac (base for our 1st self-guided bike tour)
* Bergerac to Nantes
* Nantes to Blois (then biking down the Loire to Saumur)
* Saumur to Chartres (which looks like it must be through Montparnasse/Paris)
* Chartres to Versailles (which looks like it must be through Montparnasse/Paris)
* Versailles to Paris
I'd rather not commit to specific times/trains, weeks in advance unless it is well-advised. I expect that the Montparnasse to Chartres trip and the Montparnasse to Versailles and Versailles to Paris (Montparnasse) can all be readily done at the station, the same day, near the time of departure.
Merci a tous.