Sea of Åland

The Sea of Åland, seen from Eckerö island

The Sea of Åland (Finnish: Ahvenanmeri; Swedish: Ålands hav) is a waterway in the southern Gulf of Bothnia, between the Åland islands and Sweden. It connects the Bothnian Sea with the Baltic Sea proper. The seas are often choppy here. The narrowest part is named South Kvarken.

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Coordinates: 60°10′N 019°10′E / 60.167°N 19.167°E