Located in the north of Poland, along the Baltic Sea, the Pomeranian Voivodeship is lowland coverd by clastic sediments of the glaciers, with (almost) no caves or mines. The northern part of Europe, from France to Poland, was covered by up to three kilometers of ice druing the Ice Ages. The land is thus polished and flat, and covered by the remains of the glaciers like ground moraine and end moraines. Those gravels and sands do not support the formation of caves, and so there are only four caves known in the area, all of non-karstic origin. The biggest of them is really strange and interesting and is a show cave.