Do I need to make reservations if I have a railpass?
Reservations are generally not mandatory, although they are recommended for busy times and routings. Reservations are required for some high-speed trains such as the TGV, sleeper trains, or, if you want a couchette during an overnight journey. Reservations can be made at any train station for just a few dollars or in the U.S. for an additional service fee. Couchettes and Sleeper compartments are extra.
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Train Tip
Reservations are required for all sleeping accommodations on all overnight trains. Reservations are also required for high-speed trains in France (TGV and Thalys), Italy (TAV, formerly the Eurostar Italia), principal trains in Spain/Portugal (AVE and Talgo 200) and most express trains in Scandinavia and Eastern Europe.
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