What is a continuous pass?
The Eurail pass is available with different numbers of travel days. With a continuous pass every day is a potential travel day during the period your pass is valid. With a flexi pass you have a fixed number of travel days which you can use whenever you want during the overall validity.
A continuous pass lets you travel by train on every single day that your pass is valid, but of course you don't have to spend every single day traveling by train. This pass gives you the freedom of train travel whenever you want and is the best way to see the most of Europe.
If you have a Global Pass - 22 days continuous and your pass is valid from September 1 to September 22, you can travel by train on each of these days, if you want to.
The Eurail Global Pass is available as a continuous pass with 15 days, 21 days, 1 month, 2 months or 3 months of train travel.
All other passes are available as a flexi pass with a specific number of travel days which can be used any time during a fixed period.