Trekroner Fort

Local nameTrekroner

Trekroner Søfort is a sea fort at the entrance to the Copenhagen harbour. From 1713 until after World War I, Trekroner Fort was part of the fortifications of Copenhagen.

The original location of Trekroner Fort was a few hundred meters north of the current one. In 1713, three old ships of the line were sunk to form the basis for a battery. One of the ships was called Trekroner, and she gave her name to the fort.

Construction of the current fort began in 1787. The fort was an important part of the Danish line of defense during the Battle of Copenhagen in 1801. The fort also was engaged during the British attack on Copenhagen in 1807.

Tags Artificial IslandIslandFortificationFortCoastCastle
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Opening hours

Café: 11:00 am - 4 pm

Boats schedule for Trekroner - Kvæsthusmolen
From Kvæsthusmolen: 10:30 am, 1 pm, 3:30 pm
From Trekroner Fortress: 11:00 am, 1:30 pm, 4 pm

Apr 29 - Jun 18, Aug 19 - Sep 17 (+ May 12, May 25, Jun 5): weekends only
Jun 24 - Sep 13: daily


Adults: 80 DKK
Children (3-11): 40 DKK

More information and contact


Official website



Coordinates 55°42'10.725" N 12°36'49.252" E

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