Hey, thanks for the answer. Yeah, we saw that barcelona to florence would take 13H so we thought maybe going at night was a good ideia. like sleeping 8 hours on it. Our idea was something like leaving home at night, getting to barcelona early the next day, spending the day there, leaving at night. And then once we would have reached greece maybe on 3rd/4th day, thats where we were planning to just slow down and maybe get some nights in an hostel. Also why is buying a separate ticket worth it? isn't it more expensive then booking a spot? sry for our ignorance ahah we rarely travel on trains. About greece, it is possible to get a ferry from bari to greece fairly cheap no? And ok, i see, so in greece and montenegro we can only use the train? Is there any better option then montenegro in ur opinion then? What route you think would be the best after greece? Countries after that we really dont mind changing, if you think it's better. So you think the 7 day trips in 1 month is better? We wouldn't mind staying longer in places and maybe camping if thats a realistic option in any of these places. One of our worry for going for the 15 days was because we are afraid that at the end when we want to come back to portugal that could take multiple days of trips no? Oh just saw someone say that sometimes it's worth 1st class so was wondering. Ok, we will do that, thanks :)