Specialists from [8 Coast defender Fleet](https://www.wojsko-polskie.pl/8fow/) and [3 Ship Fleet](https://www.wojsko-polskie.pl/3fo/) took part in the winter polygon group. Miner divers and engineering divers from various Naval units practice together all year during training and conditioning group organized on the basis of WOSzK infrastructure in Mragowo. Participants improved diving techniques, operating and cooperation procedures, as well as handling skills, and the usage of specialized diving equipment and hydraulic tools utilized in underwater work. The winter period offers the chance to conduct exercises in peculiarly demanding conditions - at very low water temperature and ice cover cuffing the lake.
