Introduction to the Oresund Strait: Kronborg Palace is located at the narrowest exit of the Oresund Strait. It is about 4 kilometers wide and 20 meters deep at its deepest point. Its strategic position is extremely important. The castle was established as a castle from 1785 to 1922. The military camp and the palace are also equipped with artillery. Denmark stipulates that any foreign submarine must surface when passing through the Oresund Strait.
Standing on the seawall in front of the castle and looking eastward, you can see the Swedish city of Helsingborg. The cannons on the causeway are no longer weapons of war. They were used to fire salutes as they passed through the Channel.