Passengers on ferries sailing between Northern Denmark and Norway can view information on the sea water below relayed on TV screens.
Is féidir le paisinéirí ar bháid fharrantóireachta ag seoladh idir tuaisceart na Danmhairge agus an Iorua féachaint ar eolas i leith na sáile thíos fúthu ar theilifíseáin.