Øresund

Øresund or Öresund (Danish Øresund; Swedish Öresund; English The Sound), strait in northern Europe, connecting the strait of Kattegat on the north with the Baltic Sea on the south, and separating Sweden on the east from the Danish island of Sjælland on the west. It forms part of the usual shipping passage between the North and Baltic seas. It is 105 km (65 mi) long, varies in width from 48 km to 6 km (30 mi to 4 mi), and has a minimum depth of 7 m (23 ft). The most important seaports on the strait are Copenhagen, Denmark, and Malmö, Sweden.