It can be entered by traveling south through the L
It can be entered by traveling south through the Little Belt, and the Archipelago Sea is a northern portion of it. The Bornholm Basin is this body of water's central area, and the islands of Falster and Funen can be found in its western portion, where it joins the Kattegat. The Kalmar Strait separates the island of Öland from the coast, and Gotland is a prominent island in the middle of it. The Heligoland Bight is connected to it via the Kiel Canal. The Gulf of Bothnia is a branch in the north, and along the southern coast we find the Bay of Gdansk and the Gulf of Riga. For 10 points name this body of water bordered by Sweden, Poland, and some former USSR republics.
It can be entered by traveling south through the Little Belt, and the Archipelago Sea is a northern portion of it.
{Baltic} Sea