The Bay of Lübeck is a basin in the southwestern Baltic Sea, off the shores of German states of Mecklenburg-Vorpommern and Schleswig-Holstein. It forms the southwestern part of the Bay of Mecklenburg.
The main port is Travemünde, a borough of the city of Lübeck, at the mouth of river Trave. The Elbe–Lübeck Canal connects the Baltic Sea with the Elbe.
Wikipedia https://en.wikipedia.org/wiki/Bay_of_Lübeck
Coordinates 54°8'59.249" N 11°15'11.272" E