North Sea between and among rivers, artificial harbours, and the sea. The Kiel Canal, connecting the North Sea with the Baltic Sea, is the most heavily used artificial seaway in the world reporting an average of 89 ships per day not including sporting boats and other small watercraft in 2009. It saves an average of , instead of the voyage around the Jutland peninsula. The North Sea Canal connects Amsterdam with the North Sea. North Sea The North Sea is a marginal sea of the Atlantic Ocean located between the United Kingdom (particularly England and Scotland), Denmark, Norway, Sweden, Germany, the Netherlands,
Baltic Sea watchtower, Börgerende Baltic Sea watchtower, Börgerende The Baltic Sea watchtower () in Börgerende is an old watchtower that belonged to the Coastal Brigade ("Grenzbrigade Küste") of the East German Border Troops. As a maritime border observation tower (of type BT 11) it belonged to a series of originally 27 towers of this type on the Baltic Sea coast of East Germany, of which two have survived. The other remaining tower is in Kühlungsborn. The tower is located right next to the beach. The East German border soldiers had the mission of observing shipping movements on the Baltic Sea and identifying escape attempts.