Kattegat
Extent

The International Hydrographic Organization defines the limits of the "Kattegat, Sound and Belts" (that is, the Kattegat, Øresund, Great Belt, and Little Belt) as follows:

On the North: A line joining Skagen (The Skaw, northernmost point of Denmark) and Paternoster Skær (57°54′N 11°27′E / 57.900°N 11.450°E) and thence northeastward through the shoals to Tjörn Island.

On the South: The limits of the Baltic Sea in the Belts and Sound:
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