Oscarsborg Fortress is situated on the Oslofjord and has had the important function of defending the seaward approach to the capital. With its strategic location on an island, Oscarsborg Fortress is a very popular tourist destination, with its own marina and great biological diversity.
The fortress area is open 24/7 all year. Oscarsborg is only accessible by boat. A ferry service runs every day all year from Drøbak to Oscarsborg Fortress. The crossing from Drøbak takes about 10 minutes.
|SPRING April 30 - June 17|
|SUMMER June 18 - August 12|
|AUTUMN August 13 - September 30|
|WINTER October 1 - April 29|
|RUTERs Travelplanner Oslo / Aker brygge in the summer season|
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