Trip Planner:   Europe  /  Finland  /  Uusimaa  /  Helsinki  /  Sea Fortress Suomenlinna

Sea Fortress Suomenlinna, Helsinki

4.5
#1 of 1,723 in Things to do in Finland
Must see · World heritage site · Military Museum · Military Facility
Visit World Heritage Site Sea Fortress Suomenlinna to see a sea fortress built on a collection of six islands. This ruggedly beautiful spot is a favorite among both locals and tourists. The fortress was built in 1748 and inhabited by Swedes and Russians until 1918, when it became a part of independent Finland. View the impressive fortified structure, constructed by the Swedish crown to withstand attacks from 18th-century Russia (who eventually overtook the islands in 1808). Nowadays the site supports a town with civilian inhabitants and draws visitors from the mainland of Finland. For travelers who use our online itinerary creator, Helsinki holidays become easier to arrange, with trips to the Sea Fortress Suomenlinna and other attractions mapped out and timetabled.
Improve this listing »
Create an itinerary including Sea Fortress Suomenlinna
© OpenMapTiles © OpenStreetMap contributors

Sea Fortress Suomenlinna reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
8,145 reviews
Google
4.6
TripAdvisor
  • A really nice visit. It takes 15 minutes by ferry. If you take the ferry that belongs to HSL, it's the same price as a bus or tram ride. My advice is to get a 24-hour ticket for 8 euros, as it will...  more »
  • It was a total disappointment. Walls, walls, walls and walls all the way with some not too nice seaview. If you like this type of experience then it's your place. Otherwise it not worth a visit.  more »
  • If you like not too spectacular walls, this is a place for you otherwise feel free to skip it, you do not loose anything.  more »
Google
  • Free to visit via the ferry if you have a travel pass for the transportation in Helsinki. I visited for a couple hours and walked around. There was a lot more to see, and I will probably be back to visit more when there is warmer weather. It is very quiet and peaceful and there is a lot of history to uncover by visiting there.
  • this was a very cool place to go, and there is a grocery store if you need anything. Lots of cave type passageways and just a very interesting place to walk around.
  • The island is very well taken care of and it is a pleasant place to stroll, but it is also quite artificially prepared for the tourist. It is not a spontaneous place. However, it is worth going for the quietness of the place and for the boat ride.
  • Beautiful island, many things to see, I recommend spending at least 5-6 hours here to truly appreciate the cultural areas. Great spots for picture taking, island merging with the sea alongside forts and cannons.
  • Quite and a lot of place for discovery. You can spend time about 2-4 hours with historical places

Plan your trip to Helsinki

  • Get a personalized trip
    A complete day by day itinerary
    based on your preferences
  • Customize it
    Refine your trip. We'll find the
    best routes and schedules
  • Book it
    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it
    Everything in one place.
    Everyone on the same page.