The Öresund is a strait that separates Denmark and Sweden. It connects the Baltic Sea to the North Sea and is approximately 118 kilometers long. The strait is an important shipping route and features the famous Öresund Bridge, which links the two countries by road and rail. The region around the Öresund is known for its rich marine life and beautiful coastal landscapes. Major cities like Copenhagen in Denmark and Malmö in Sweden are located near the strait, making it a vital area for trade, tourism, and cultural exchange between the two nations.