Strait, northern Atlantic Ocean.
Lying between southeastern Baffin Island and southwestern Greenland , it separates Baffin Bay to the north from the Labrador Sea to the south, and forms part of the Northwest Passage . About 400 mi (650 km) north to south and 200400 mi (325650 km) wide, it was explored in 1585 by the English navigator John Davis. Along the coast of Greenland, the Greenland Current carries relatively warm water northward, while the cold Labrador Current transports icebergs southward along Baffin Island's eastern shore.