Located just a few dozen meters from Guzianka Lock I, this structure stands on the edge of the canal connecting Lake Bełdany and Lake Guzianka Mała. Its purpose was to protect the strategic water passage – both the lock itself and the nearby bridge. The canal served as a vital waterway and communication route, meaning that its loss could sever transport lines in wartime. It is a reinforced concrete combat bunker, typical of the World War II era, designed to house a machine gun crew (operating an MG 34 or MG 42).
It formed part of Mazury’s fortifications constructed by Germany in the 1930s and early 1940s to prepare for the defence of East Prussia. Ruciane-Nida’s proximity to strategic command centres – like the Wolf’s Lair in Gierłoż – meant hydraulic infrastructure (including the Guzianka Lock) was accorded special protection.
Today, it houses a museum managed by the “Stowarzyszenie nad Nidzkim” (Lake Nidzkie Association).
Photo: Jarosław Kowalski
