Denmark Strait

The narrowest part of the strait is 290 kilometres (180 mi) wide and lies between Straumnes, on Iceland's Hornstrandir peninsula, and Cape Tupinier, on Greenland's Blosseville Coast.

According to the International Hydrographic Organization, the dividing line between the Arctic and the North Atlantic Oceans runs from Straumnes to Cape Nansen, 132 km (82 miles) southwest of Cape Tunipier.

The narrow depth, where the Greenland–Iceland Rise runs along the bottom of the sea, is 191 metres (625 ft).

The cold East Greenland Current passes through the strait and carries icebergs south into the North Atlantic.

Bismarck was able to enter the Atlantic through the Strait, but damage sustained in the battle—combined with British aircraft search-and-destroy missions—led to her own sinking three days later.