I know that this question has been asked at least a few times, so I apologize for the duplication. We are traveling on July 8th from Portsmouth, UK to Cherbourg on the morning ferry and planning to take the train to Bayeux immediately from there. After an overnight in Bayeux, we plan to take a Saturday afternoon train to Paris on July 9th. Is it advisable to purchase these tickets in advance or just show up at the station and purchase on the spot?
I appreciate the advice.