
Kastellet (The Citadel)
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.
Where to Stay in Copenhagen
Selected by City Buddy based on guest reviews and proximity to top attractions
Search all hotels in CopenhagenPowered by agoda
Have you heard of free walking tours?
After traveling to 30+ countries, there's one thing I wish someone had told me from day one, and it completely changed how I experience new cities.
Free walking tours. Yes, actually free. No credit card needed. No catch.
Local guide, 2-3 hours
Major sights, hidden gems, local stories
100% tip-based
Guides earn only tips, so they give their absolute best
You tip what feels right
At the end, just tip whatever you feel is right
I've done these in dozens of cities and they've been the highlight of almost every trip. If you're visiting Copenhagen, Denmark, do this on your first day. You'll thank me later.
More attractions in Copenhagen

Tivoli Gardens

Nyhavn

The Little Mermaid (Den lille Havfrue)

Rosenborg Castle (Rosenborg Slot) and Kongens Have
Most popular itineraries!
Browse trip plans created by other travelers
