A long system of concrete fortifications was once part of the Naval Port’s defences, but was intentionally destroyed after a friendship and cooperation agreement was signed with Germany in 1908. It’s not known if the tsar later pondered the irony of blowing up such massive defences on the eve of WWI, but of course it's always easy to make jokes with hindsight. Today, you can cautiously walk through the ruins and watch buildings, pillboxes and concrete staircases slowly recede into the sea, but beware as a large section collapsed in a landslide in January of 2018. Similar forts are visible in the south of Liepāja where Klaipēdas and Ganību streets meet.