Can I use France Switzerland Eurail pass for Paris to Interlaken TGV train?

Can someone explain to me how the Eurail works?

• I want to go from Portugal - Spain - France - Switzerland - Italy- Germany - Greece to Turkey, is there like a special pass or something I could use and I would be using the night train (also can someone explain that as well) like if I stayed in each country for like 3 - 4 days, how much would it cost? Also is there a Eurail in England and if not is it coming to England? Thanks in advance

• Answer:

  Eurail sells passes that can be used on the trains in participating countries. For example, if you have a pass that's good for 4 days in a month, then you can use it on four days of your choice regardless of the number of trains you take in those 4 days. Eurail passes are not valid in the UK and are not expected to be. You can use Eurail passes on a night train, but there will be an additional supplement to pay for a berth on the train. http://www.eurail.com/support/use-pass/how-much-are-the-extra-costs-for-a-night-train . There are also supplements for fast trains and international trains that vary by country: http://www.eurail.com/support/planning-your-trip/how-much-are-reservation-fees Generally, it is cheaper to buy individual tickets for trains here in Italy that to use a Eurail pass. Note that with a pass, you still need to make reservations for the fast trains and pay an additional 10 euro per train. The supplements for the few night trains will be more if you get a berth. Further, there are discounts on individual tickets for the fast trains available if you buy them in advance. There are some regional trains for which you do not have to pay a supplement, but individual tickets are cheap compared to the daily cost of a pass. These trains are also slow because they make a lot of stops and can require train changes depending on your specific trip. There is a huge amount of information on train travel and Eurail passes here: http://www.seat61.com/ . The site will tell you how to determine whether a pass is worth the money for your trip or individual tickets are best, which pass (if any) best suits your trip, and how to use the pass if you have one. It also has information on things to avoid to get the most out of a pass. For example, see the section called "Common railpass mistakes: Italy..." and "Railpasses - a warning about 'quotas'...": http://www.seat61.com/Railpass-and-Eurai%E2%80%A6 pass range