CityBuddy
Kastellet (The Citadel)
Tickets: book ahead or walk in?
A public park fortress open daily with no admission charge; simply walk in.
Timed entry
No
Typical price
Free
Busiest
Midday in summer, weekends
Quietest time
Early morning before 9:00
Best time to visit
Early morning or late afternoon to avoid tour groups and enjoy soft light; spring and summer add blossoms and longer daylight.
Budget tips
Free to enter; no admission fee, though gate hours can vary so check the official site. Combine with a free walk to the nearby Little Mermaid and Amalienborg to save transport costs.
Recommended for
History buffs, Photography enthusiasts, Families, Walkers and runners
Plan your visit
45-60 min
About
Quick facts: Crunchy gravel paths and the tang of salt air lead you along grassy bastions where old cannons sit quietly, giving unexpectedly peaceful city views. A star-shaped layout invites wandering across earthworks, while a daily changing of the guard and a resident flock of mute swans add theatrical local charm.
Highlights: A perfectly star-shaped fortress with five grass-covered bastions and a water-filled moat invites you to walk its ramparts, where angled earthworks and cannon embrasures still read like a 17th-century map. Climb the northern rampart to hear a wooden windmill from 1847 creak on its axle, smell warm timber and cut grass, and watch locals time a casual loop at about 20 minutes while feeding the ducks.
Insider tips
- Wear sturdy shoes, ramparts are gravel and can be slippery after rain.
- Best photos come from the northern rampart by the old windmill and from the southern path facing the Little Mermaid.
- Avoid weekend midday by visiting early or late afternoon when locals use the park and crowds thin.
- Bring a light jacket, harbour winds make the ramparts feel colder than the city.
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More attractions in Copenhagen
Tivoli Gardens
Nyhavn
The Little Mermaid (Den lille Havfrue)
Rosenborg Castle (Rosenborg Slot) and Kongens Have
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