01-10-2021, spotted on the Martwa Wisla Gdansk, some vessels of PRCIP Gdansk (Dredging and Underwater Works Co. Ltd.); pushing tug OSKAR with plough, small tug STEFKA, Backhoe dredger MALZ II and splithopper barge SM PRC-112. And a small unknown old steam tug, moored near the Wisłoujście Fortress.
