Three ferry companies sail daily cruises between Oslo and Denmark and Germany.
Color Line
Color Line sails between Oslo and Kiel with daily departures at 14:00 from both cities.
Stena Line
Stena Line sails directly between Oslo and Frederikshavn, with departure from Oslo at 19:30 6 days a week (summer: every day).
DFDS Seaways
DFDS Seaways sails between Oslo and Copenhagen with daily departures at 17:00 from both cities.