Suomenlinna

Suomenlinna / Sveaborg

An 18th-century sea fortress spread across six islands and a UNESCO World Heritage Site. Its walls, gun batteries, a submarine and grassy slopes for picnics make it Helsinki's most popular day trip.

Suomenlinna construction began in 1748, when Finland was under Swedish rule. To defend against Russia, a bastion-style sea fortress was built on islands outside Helsinki's harbour. It was originally named Sveaborg (Swedish Fortress). Russian forces occupied it in 1808, and after Finland gained independence it was renamed Suomenlinna (Finnish Fortress). The fortress consists of six islands linked by bridges, with walls totaling about 6 km. It was added to the UNESCO World Heritage list in 1991, and about 800 people still live on the islands. Highlights include the visitor centre and Suomenlinna Museum near the harbour, which explain the fortress's history. King's Gate, the main gate through which Swedish kings once arrived on the island, is another highlight. The Vesikko submarine from World War II is open in summer. On the southern tip, coastal batteries and grassy slopes offer views over the Baltic Sea and the large ferries entering and leaving port. The island also has a Toy Museum, a Military Museum and a brewery restaurant. The island's walking trails total about 2 to 3 km, and the blue route is recommended for a full circuit. To get there, take an HSL ferry from the Market Square pier. The trip takes about 15 to 20 minutes and runs year-round. A standard HSL AB zone ticket works (about €3 one way, and day tickets are valid too). It is windy on the island, so bring a jacket. Summer is ideal for a picnic.

Suomenlinna

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