My husband and I are planning a backpacking trip to Europe in June. We're thinking about getting a Eurail pass for the rest of our trip, but aren't sure what to do about travel in France (due to the reservations/restrictions). We are traveling to Paris from Brunswick, Germany and then will head to somewhere in Southern France after Paris (next stop Venice). However, our dates won't be finalized until days before our trip and we want to remain somewhat flexible. What is our best option for train travel in France? Are we going to have to pay ridiculously high prices if we book same day or a only few days in advance?