Expressway S6 is a Polish highway which runs from the A6 autostrada near Szczecin, through Koszalin to Gdańsk, parallel to the Baltic coast, forming the main connection between Gdańsk and Szczecin.

Słupsk is a city with powiat rights located on the Słupia River in the Pomeranian Voivodeship in northern Poland, in the historical region of Pomerania or more specifically in its part known in contem