Liepaja Northern Forts

Liepaja · Baltic Sea · Latvia

The Liepaja Northern Forts represent one of the Baltic's most unusual dive sites, a place where military history literally crumbles into the sea. Built between 1893 and 1906 as part of the Russian Empire's coastal defense network, these massive fortifications once bristled with artillery batteries protecting the naval port of Liepaja. Today, coastal erosion has dragged entire sections of the fortress complex beneath the waves, creating an underwater maze of collapsed walls, brick archways, and concrete gun emplacements that grows larger with each passing storm. I entered the water from the beach on a calm July morning, visibility sitting around five meters in the green-tinged Baltic water. Within moments, the first ruins appeared: a section of fortress wall rising from the sandy bottom at just four meters depth, its brickwork still remarkably intact despite over a century of submersion. Zebra mussels encrust every surface, and tufts of algae wave from the mortar joints like green flags marking the passage of time. Swimming deeper along the collapsed structures, I passed through what appeared to be a doorway, its lintel sagging but still holding. The scale of the ruins is impressive -- these were not small structures but massive fortifications built to withstand naval bombardment. Concrete reinforcements from later military modifications jut from the original brickwork, telling a layered story of conflict. Scattered among the Imperial-era ruins lie remnants from the Second World War, when German forces used and eventually abandoned the position. The marine life here is modest by tropical standards but fascinating in context. Round gobies peer from crevices in the brickwork, Baltic cod cruise the edges of the structures, and occasionally a pike appears from the murk like a silver torpedo. Flounder lie camouflaged on the sandy patches between walls, and perch school in the sheltered areas within the ruins.