SeeHistoric siteØsterbro
Trekroner
Trekroner fortress
This 18th-century fort was built to guard the sea approach to Copenhagen's harbor in 1786. It has a special atmosphere, and some gorgeous views over Øresund. There are several well-preserved military buildings and fortifications. A restaurant and a café have been opened in a renovated building. The only access is via Canal Tour's green hop on hop off route (summer only).
- Address
- Københavns Havn
- Getting there
- 12.61408
- Hours
- Summer: 10:00-15:00 daily, closed the rest of the year
- Price
- Admission is free, boat costs 35 kr
- Phone
- +4551360444
Listing from Wikivoyage: Copenhagen/Østerbro, CC BY-SA 4.0.
Location and details from OpenStreetMap, © OpenStreetMap contributors, ODbL.
Also listed in Overture Maps open data.
Updated 27 Sept 2026. Something wrong? Tell us.