ZAWISZA CZARNY at Newcastle Quayside 29/06/2025. She is operated by the Polish Scouting and Guiding Association. Photo by Richard Athey.
The following info was gleaned from the web, so may not be accurate. Apparently she is powered by an ex UBoat diesel engine.

Built as: CIETRZEW
Yard: Remontowa Shipbuilding, Gdańsk
Year: 1952
IMO: 8683028
Names: ZAWISZA CZARNY
End:
Fate: Still in service
Data courtesy of Miramar