Remains of the furnace

Solid construction has traces of recent gas cutting attempts. What was there - the dining room, the laundry? Who knows!
In 1963-2012 the island was leased to the Finns. They planned to arrange here warehouses for transshipment of goods transported along the Saimaa Canal. However, the Saimaa Canal did not manage to become a busy transport artery for a number of reasons ...