In the forest in the Land of the Great Masurian Lakes, there is a complex of the former German main headquarters of the Army High Command.
Between 1940-1944, over 200 facilities were built here serving various units and staff services. Some of them were wooden buildings that no longer exist today. In good condition, 30 concrete shelters have survived with characteristic rough walls, covered with plaster made of sea grass soaked in concrete.
At its peak, about 1,500 people worked in Mamerki, including several dozen generals. The headquarters facilities, which were not destroyed by the Germans during the retreat in 1945, are located in the forest bunker town and can be visited at any time of the year. It is worth coming here from May 1 to October 30, when the visit is paid, but closed places are made available outside the designated season. You can then look inside the shelter-giant, an object similar to the largest buildings of the Wolf's Lair. The walls of this bunker within a bunker are 7 meters thick! Modern comfortable wooden stairs lead to the roof of the shelter, on which a viewing tower has been built. From a height of 15 meters, there are magnificent views of the nearby Lake Mamry.