Seas of Denmark

Inland sea of ​​the Atlantic Ocean basin

marginal sea of the Atlantic Ocean

thumb|275px|Aerial view of Øresund and the municipality of Landskrona in Sweden thumb|275px|Øresund Bridge from the air in September 2015 Øresund or Öresund (, ; ; ), commonly known in English as the Sound, is a strait which forms the Danish–Swedish border, separating Zealand (Denmark) from Scania (Sweden). The strait has a length of ; its width varies from to . The narrowest point is between Helsingør in Denmark and Helsingborg in Sweden.