Suomenlinna Museum
The museum presents the history of the fortress for over 270 years, the fortification works and the dry dock as well as the everyday life and celebrations of the inhabitants and soldiers.
The exhibition includes personal objects, tools and weapons found at Suomenlinna. The museum’s permanent exhibition gives a comprehensive picture of the fortress and the life of its inhabitants in the 18th and 19th centuries.
Opening hours
The museum is open year-round daily at 10:30-17:00.
During the summer season 2024, from June to August daily at 10:00-18:00.
The museum is closed 24th-25th of December.
Please check the Suomenlinna opening hours and events calendar for any exceptions to opening hours.
Suomenlinna opening hours and event calendar
Purchase museum tickets in advance from our online store.
We kindly ask groups to inform us of their arrival in advance.
The Cellar of the Sea – a dive beneath the Baltic Sea’s surface
The Cellar of the Sea – a dive beneath the Baltic Sea’s surface exhibition is on display from Mars 5, 2025, to January 16, 2026.
The exhibition provides insights into various regions of the Baltic Sea, its fascinating key species and environmental threats caused by human activities. Study the evolution of diving equipment and learn how shipwrecks reveal stories buried in the bottom of the sea. Read more: John Nurminen Foundation
Suomenlinna Experience – short film
Once even called the Gibraltar of the North, Suomenlinna is one of the largest sea fortresses in the world. The “Suomenlinna Experience” short film presents the complex story of the fortress, spanning through history from its foundation to the present day.
The duration of the film is approximately 25 minutes. The show starts every half hour, and the last film of the day starts one hour before the museum closes.
Language options: Finnish, Swedish, English, German, French, Russian, Spanish, Chinese, and Japanese.
Suomenlinna Museum tickets
Suomenlinna Museum, located in the Suomenlinna Centre, showcases the eventful history of the island fortress.
Suomenlinna Package for groups
Suomenlinna Package includes a short film at the Suomenlinna Museum followed by a guided tour around the fortress.
Suomenlinna Fortress Digital Tour in over 20 languages
Download the app on your phone and you will get to know the Suomenlinna sea fortress!