The Balkan pass works like a Eurail pass and will serve as your ticket for every train. There might be a few trains that require reservations which you will have to pay extra for. You will probably have to buy a reservation/supplement for any overnight train. I’m confused by your reference to Interrail. I didn’t think the Balkan pass was available to citizens/residents of Europe.

Unless you’re doing a lot of train travel, I’d be surprised if the Balkan pass saved any money over point to point train tickets — particularly since you’re visiting places that are probably more easily reached by bus.

Hey I’m from Serbia u can visit this site fr your trip.
http://www.zeleznice…

here is all chip and I think that you dont need to go back to Belgrade if u want to visit Skopje bcs, only maybe bcs Kosovo or Albania… you can visit this site and see map…trains in serbia are very bad and slowly and they are always late…i dont like them.. its better to go with bus somewhere..

And if u are coming to Serbia this summer in my town, Novi Sad, from 9 to 12 july is EXIT festival, the best music festival in Europe!

Thank you for your help, oldlady and dimitrijek. I actually wrote a letter to the serbian railways to request some infos and they answered my questions and there’s a train from Bar to Skopje NOT across Belgrade. But I’m not sure if I’ll travel to Macedonia this time… Bar seems to be okay, and from there I’d take a bus to Kotor.

Dimitrijek: I checked the program and it’s gonna be fun for sure. But if festivals, don’t miss out Sziget in Budapest.