Hello, I have a 10 in 2 months global pass and will only use the outbound journey to leave Germany. With 2-3 days left on my pass I will take a flight back from Barcelona to Berlin.
As the inbound journey will not be used with some regular travel days left, could I do another day trip let's say within the same day on another weekend from Berlin to Poland? To Poland early morning, back the same evening, although only inbound is still available