Ungava Bay (, ; /) is a bay in northeastern Canada separating Nunavik (far northern Quebec) from Baffin Island. Although not geographically apparent, it is considered to be a marginal sea of the Arctic Ocean for climatic reasons. The bay is roughly oval-shaped, about at its widest point and about in length; it has an area of approximately . It is generally fairly shallow, under , though at its border with the Atlantic Ocean depths of almost are reached. Geography Although it is quite close to the open Atlantic (separated only by Hudson Strait), Ungava Bay is part of the Arctic Ocean. Ungava Bay is separated from Hudson Bay by the Ungava Peninsula. Akpatok Island is largest of the many islands in Ungava Bay. Bathymetric studies suggest that Ungava Bay may be the remnant of an impact crater (age unknown) approximately in diameter. The southwestern corner of Ungava Bay vies with the Bay of Fundy for the highest tidal range in the world. Some sources estimate the spring tide range at the mouth of the Leaf River as being as high as . Attempts have been made to develop tidal power in the bay, but this is made difficult by the harsh climate and the fact that the bay is ice-free for only a small part of the year. Climate Due to the influence of the Labrador Current, summers are too cold for tree growth and all the land surrounding the bay is treeless tundra. Typically, temperatures in summer at Kuujjuaq about twenty kilometres up the Koksoak River are about , while winter temperatures are about . Precipitation averages around per year, most of it falling in the summer. Human development Ungava Bay is surrounded by numerous Inuit villages, the largest of which is Kuujjuaq, Quebec, at the mouth of the Koksoak River. Iron ore has been mined in the past, but despite the high grade of the ores the impossibility of cheap transportation meant that mining was discontinued in 1980. Traditional Inuit hunting activities still dominate the region's life, along with expensive adventure tourism. References External links Across Arctic Ungava (1949). An online documentary from the National Film Board of Canada. Bays of Quebec Bays of Qikiqtaaluk Region Landforms of Nord-du-Québec