I'll be in Dubrovnik at the beginning of June and wanted to get the train up to Split. Is this possible? How long would it take? Ideally I'd leave Dubrovnik early in the morning. The Croatian train website said it would take 45 hours as it goes through Zagreb?? Can anyone tell me if there is a faster and more direct way to get there please (preferably by train as I will have an interrail pass which i would like to use.) Thanks!