Sorry, but currently we do not have detailed information about this tourist attraction called «Ruotsinsalmi sea fortress» in SAH. If you can tell us something interesting about it, please do it! Information on «Ruotsinsalmi sea fortress» is available in the following languages: English, Suomi, Français
, N60°26'29", E26°58'26". Get directions
Website: www.visitkotkahamina.fi