I believe it is The Baltic Sea
Sweden is border on the west by the country of Norway and on the northeast by the country of Finland. The Gulf of Bothnia runs along the East coast of Sweden. Southeast of Sweden is the Baltic Sea. To the Southwest are the Danish Straits, the Kattegat/Kattegatt (spelling depends on whether you are Danish or Swedish) and Skagerrak which connect the Baltic Sea to the North Sea
The Baltic Sea
The two seas on Germany's north coast are the North Sea and the Baltic Sea.
baltic and north sea
Germany is bordered by the North Sea and the Baltic Sea to the north.
North Sea and Baltic Sea
The Baltic Sea.
The North Sea. To the east is the Baltic Sea.
St. Petersburg lies at the eastern end of the Gulf of Finland, which connects to the Baltic Sea. The Baltic Sea connects to the North Sea, through the straits of the Kattegat, which separate Sweden from Denmark. So you can sail from St. Petersburg out to the North Sea, and then to any ocean in the world.
They connect through the Skagerrak and the Kattegat
Yes, the Red Sea is larger than the Baltic Sea.