Suomenlinna
Ideal: Ideal for history, sea views, and peaceful walks.
Built from 1748 by Sweden as Sveaborg against Russia, it was one of the era's most expensive defence projects spread across six islands; nevertheless it was surrendered to the Russians in 1808 without serious fighting, and that surrender is still debated in Finland. It joined the UNESCO list in 1991. About 800 people live on the islands year-round today, and inmates from the open prison on site work on restoration. The ferry takes a normal public transport ticket.
Quick facts
- Built
- 1748
- Area
- 210 hectares
- Heritage status
- World Heritage Site
Facts from Wikidata, photos from Wikimedia Commons.
Did you know?
Which country built this fortress?
Sweden built it in 1748 against Russia; it later became a Russian naval base and passed to Finland in 1918. Few fortresses carry the military heritage of three different states.
Do people live on the island?
Yes, around 800 residents live there permanently. The island is also a district of Helsinki, served year-round by ferries that are part of the city transport network.
What is the submarine on the island?
Vesikko, a Finnish submarine from the Second World War, open as a museum. It is the only survivor of its class and was the prototype for the German Type II boats.
Why go?
- To see the UNESCO-listed historic sea fortress
- For island atmosphere after a short ferry ride from Helsinki
- For sea-view walks and quiet exploration routes
Travel tip
Allow a few hours in good weather; walking the island paths as well as the fortress improves the experience.
