Siarö Fort

The granite fortress contains underground chambers, concrete trenches, barracks, and two 152-mm Bofors cannons positioned along the Furusundsleden strait.

Construction of the defensive fortress began in 1916 to protect Stockholm's northern waterway, facing delays due to financing issues before completion in 1924.

The fortress represents early 20th-century Swedish military engineering, with its structures carved into rocks to minimize visibility from approaching vessels.

Visitors reach the fort via steamboat from Stockholm's National Museum pier or by taking bus 670 to Östanå followed by a ferry.

The underground complex includes restored military facilities, accommodating 270 personnel, with original equipment from the coastal battleship Svea.

Operator: Statens fastighetsverk

Website: https://sfv.se

GPS coordinates: 59.55603,18.62418

Latest update: March 14, 2025 01:39