Hello. I have seen on the Interrail App that is it not compulsory to book a reservation for the train Hamburg-Copenhagen, but some people form the Community have said that it is. I have a 1st class pass and was wondering if maybe 1st class wagons are not as crowded as 2nd class wagons, and therefore and I would not need to book a reservation.
Thank you!
Best answer by AnnaB
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