Suomenlinna

This series of interconnected islands in front of the city of Helsinki is a historical landmark. It served as a fortress for 3 countries: Sweden, Russia and Finland. With its five miles of wall, hundreds of cannons it became the 2nd mightiest fort of its kind in Europe after Gibraltar. Take a ferry to the island from Kauppator (see location on the map above) and take a lovely and scenic stroll while learning more about the history of the Baltic.