Each dweller of Tricity knows the long story, which is handed down from generation to generation, about how Gdańsk Bay froze so deep that you could travel to Hel Peninsula by taking a shortcut through it. I don’t know whether this story is true, but not so long ago, precisely in the 80s of the 20th century - in 1986 and 1987 - winter season was known for temperatures of approx. -40 degrees Celsius. In 1987, the ice in…