The Šibenik bay, which is 10 km long and 300-1200 meters wide, opens torwards the open sea and islands through a narrow curving channel. The coastal area of Šibenik stretches only a few kilometers from the sea, to the hilly range of Trtar, and in the southeast to the Svilaja Mountin. This area, in which the most citizens in the county live, experienced a strong urbanization after World War II. Just about all production capacities are located here, and just about all econimic strength an activity of the county are concentrated here.