The City Night Line service between Amsterdam and Copenhagen takes place aboard the Borealis sleeper train. A restaurant car serves passengers between Hamburg and Copenhagen. There are two border crossing points at Emmerich and Flensburg.
Flensburg is a German town in the centre of the Southern Schleswig region. Transport within the city is provided primarily by bus. Flensburg Station operates local and inter-city routes.
If you plan to travel between Copenhagen, Hamburg, Frankfurt and/or Basel, there is a City Night Line overnight sleeper train service called Aurora that runs daily. Other sleeper services are available to Amsterdam.