Train on a ferry?

I just found out that we were on the ferry today. I don’t know how Yogi was awake to realise that the train had lazily cruised onto a ferry on its way from Copenhagen to Hamburg. We arrived home from our last night in Copenhagen just in time to pick up our bags and catch a taxi to the station. Taxi drivers in Copenhagen should be Kroner millionaires at the rate the meter ticked over… at any rate, we paid for his Christmas duck.