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

Sea Fortress Suomenlinna, Helsinki

4.5
#1 of 1,934 in Things to do in Finland
Must see · World heritage site · Military Museum · Military Facility
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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.
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Sea Fortress Suomenlinna reviews

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TripAdvisor traveler rating 4.5
8,221 reviews
Google
4.6
TripAdvisor
  • Suomenlinna is one of the most popular tourist attractions in Finland . Most of the fortifications and utilitarian buildings dating from the Swedish and Russian periods are well preserved. The... 
    Suomenlinna is one of the most popular tourist attractions in Finland . Most of the fortifications and utilitarian buildings dating from the Swedish and Russian periods are well preserved. The...  more »
  • Nice to walk around, not massively lots to do but it’s worth spending a morning here. Feels very authentic and picturesque and historical. 
    Nice to walk around, not massively lots to do but it’s worth spending a morning here. Feels very authentic and picturesque and historical.  more »
Google
  • This was probably the coolest thing we did in Helsinki. You take a ferry to the island. There are a lot of trails, we mostly stayed on the blue line with only a couple deviations. The River that cuts through the middle was awesome. Near the end you can walk up a hill toward some cannons. Don’t miss this!! There are little mounds that look like a hobbit city!! It’s a really cool landscape you can explore. You get great views of Helsinki from the cannon area too! We went into an art shop on the way back and they had some REALLY cool stuff that the locals that LIVE on the island make. Very talented people!! Loved this excursion!!
  • This was a really cool experience for me, went with a friend during the week and the best part the transportation was included in my 5 day city transport pass. One of the coolest things on the island to see are the cannons, the shipyard and the surrounding views. It's just a really nice place for a chill walk.

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