We are taking a Balkan tour in September. Before that, we are spending a few days in Budapest and then taking a train to Sarajevo, where our tour starts. I'm having trouble finding info about the train from Bud to Sar, even on Eurorail. Does it travel daily? Do I buy a ticket there, or in advance? If in advance, how?
Also, for touring Croatia and Slovenia, would you recommend early September or early October? We are not big beach people, more into history and culture.