Know that you can book a standard adult train fare for travel between Paris and Munich is typically available for under $200 per person. First class tickets are about one-third more in price.
Take advantage of travel discounts for seniors and military personnel.
Realize that the France Rail Youth Pass entitles riders ages 12 to 25 unlimited rail travel in France over 4 to 10 days within a month's time.
Make sure you validate your ticket before boarding. You can be fined heavily if you don't do this, so look for the orange validation machines near your train platform during both your departing and arriving trips.
Realize that the Eurail system includes several trains, including the Eurostar, TGV and other trains. To Munich, German ICE (InterCity Express) trains are also available.
Know that many trains in France don't require a reservation, except the high speed TGV trains, which fill up quickly.
Reserve a seat ahead of time for an overnight train to Munich, this is a requirement. Also, it's just a good idea in order to get a seat or sleeper (couchette) for your trip.
Spring for a first class ticket on an ICE train to enjoy a lounge just behind the train conductor. You will also be able to see the view from the conductor's vantage point.
