The group known as ‘Walruses’ from Środa Śląska were taking their annual festive plunge when they spotted the floundering pooch after it had fallen through the lake’s thin icy covering.
Wearing only black underwear and a woollen hat, the mystery man was captured on camera by a local passerby wading through the subzero waters in Poznań where he then plucked the baby deer out of the water before ploughing his way through the ice to safety.
Marcin Kolczyński had been relaxing on the beach in the Dutch seaside resort of Julianadorp when he spotted the children struggling and dashed into save them. His body was later discovered washed up in the shore.
The device transforms from a slim belt into something that can save a life in a matter of seconds.