There are currently no international trains from/to Greece. The easiest way to get to Greece is often to use a ferry via Italy.

Et est ce qu'on peut réserver le bateaux Bari to patras enligne avec le passe interrail. 

Merci

Bien sûr. On peut le faire sur le site web de Superfast, où on peut indiquer que l’on a un pass Interrail.

There are many more other ferries-also from other IT ports and these may offer even cheaper fares in the end-after all the surcharges and discounts. ´FREE (gratuite) does not mean you pay nothing-yo still have to pay porttax, fueltax and accomodation-a recent post said this was 32€ now, with also the cost of a passday it comes to around 70.

Merci beaucoup 

Thank u