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Akershus
Frogn

Oscarsborg Fortress

Highlight • Historical Site

Oscarsborg Fortress

Hiking

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  • Location: Frogn, Akershus, Norway

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    May 15, 2026

    In the middle of the Oslofjord, Oscarsborg Fortress sits enthroned on the island of Håøya. An imposing 19th-century stronghold that you can only reach by boat. Here, Norwegian gunners sank the German cruiser „Blücher“ in April 1940, giving the Norwegian government crucial hours to flee Oslo. After exploring the fortress grounds, a hike through Håøya's natural forest paths with a magnificent view of the fjord is worthwhile.
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    July 24, 2019

    Hiking

    Impressive fortress. Is worth a trip.
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    4.0

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    #1.

    Drøbak Badepark – Figurehead in Drøbak loop from Drøbak

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    Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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    Elevation 20 m

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    Friday 22 May

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    Location: Frogn, Akershus, Norway

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