Day Trips From Oslo by Train and Ferry
Oslo’s own harbor already covers half of what most cities need a day trip for, so the ones worth the train fare are the ones that actually leave the fjord behind for something the city doesn’t have.
Under an hour: Drammen and the fjord islands
Drammen is a genuine working Norwegian city rather than a curated stop, roughly 30 minutes west by regional train, best treated as a low-key half-day rather than a headline destination. Closer still, the standard Ruter Zone 1 ticket (NOK 46) covers the public passenger ferry from Rådhusbrygge pier 4 out to islands like Hovedoya, Lindoya and Gressholmen, which is the cheapest fjord trip in the city and needs no separate booking. Compare paid Oslofjord sightseeing cruises on GetYourGuide if you’d rather have a narrated, longer route than the DIY ferry gives you.
About an hour: Fredrikstad’s walled old town
Fredrikstad’s Gamlebyen is the largest and best-preserved fortress old town in Northern Europe, still home to roughly 350 residents inside its ramparts, reached by a roughly hour-long train from Oslo S plus a short walk and a two-minute ferry crossing from the modern station to the old town itself. Don’t stop at the train station itself and assume that’s the sight; the actual draw is across the river. Book a Fredrikstad day tour on Viator covers transport for anyone who’d rather not manage the connection solo.
Under an hour and a half: Drobak and Oscarsborg
Bus 500 from Nationaltheatret runs roughly 50 to 65 minutes to Drobak, a wooden fjord town with a small local ferry across to Oscarsborg Fortress, the island position where the German cruiser Blucher was sunk on 9 April 1940. Check current transport options on Visit Greater Oslo before setting out, since the seasonal harbor ferry from Aker Brygge is an alternative to the bus in summer.
Long day or better as an overnight: Lillehammer
Lillehammer sits roughly 1 hour 45 minutes to 2 hours 15 minutes from Oslo S by train, with 12 to 18 daily departures per Lillehammer’s own visitor site , and carries its 1994 Winter Olympics history through the town. It’s a realistic long day trip, but an overnight lets you actually see it rather than just arrive and turn around. Pair any of these with our multi-day Oslo itinerary if you’re building a longer stay around the city.
Book the Fredrikstad or fjord-island ferry crossing as a same-day walk-up rather than pre-booking; none of them require advance tickets, only the train or bus leg does.