As Marschbahn a railway main line located in Schleswig-Holstein is called, which connects the stations Elmshorn in the south and Westerland on Sylt and Tondern as the Danish border station in the north.
I absolutely agree, this would be a great route! Since it seems pretty easy for DTG right now to create routes with the Deutsche Bahn, I dont think this would get too many hassle for them. Also, the Sylt Shuttle should be added (Video in German): *Video is a joke XD
