Historic site · Finland
Suomenlinna
Sea fortress by Helsinki, Finland
About Suomenlinna
Suomenlinna, or Sveaborg, is a sea fortress composed of eight islands, of which six have been fortified. Located about four kilometres (2.5 mi) southeast of the city center of Helsinki, Finland, Suomenlinna is a popular destination for both tourists and locals, who enjoy it as a picturesque picnic site. Construction of the fortress began in 1748 under the Swedish Crown as a defense against Russia. The general responsibility for the fortification work was given to Admiral Augustin Ehrensvärd.
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Best time to visit
Midday highs, based on last year's weather. Green months have comfortable temperatures and few rainy days.
On the map
Famous places nearby
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Ready-made plans nearby
Questions about Suomenlinna
Where is Suomenlinna?
Suomenlinna is in Finland. The nearest city is Helsinki, about 4 km away.
Is there a ready-made trip plan near Suomenlinna?
Yes. The 2-day Helsinki plan is about 3 km away. You can open it and change it as you like.
How can I plan a trip to Suomenlinna?
Tap "Plan a trip here" and Triptime AI builds a free day-by-day plan around Suomenlinna that you can edit on the map.
More famous places in Finland
Triptime AI builds a free day-by-day plan around Suomenlinna: what to see nearby, where to eat and where to stay.
Helsinki travel guide