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 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 May 1 - June 18|
|SUMMER June 19 - August 20|
|AUTUMN August 21 - Oktober 8|
|WINTER October 9 - April 30|
|RUTERs Travelplanner Oslo / Aker brygge in the summer season|
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