We are looking to begin interrailing on the 4th July in Bucharest making our way through the Balkans to arrive at Slovenia.
Ideally (open to alterations) we would take this route:
Bucharest - Sofia
Sofia - Thessaloniki
Thessaloniki - Belgrade (we are under the assumption that there is a direct night train for this route but not certain)
The information does not seem to be readily available regarding these routes and are curious to find out whether there are any trains available completing these routes this summer?
Any input would be greatly appreciated.