The Cabot Strait separates Newfoundland from which island?

The Cabot Strait is a channel 68 miles wide (110 km) between Cape Ray, Newfoundland and Cape North, Cape Breton Island. The strait was named after John Cabot, the navigator who was sponsored by the English King Henry VII in the late 15th century. It is the widest of the 3 outlets for the Gulf of Saint Lawrence into the Atlantic Ocean, the others being the Strait of Belle Isle and the Strait of Canso. It has a maximum depth of 550 metres (1,800 ft).

The strait is also an important international shipping route, being the primary waterway linking the Atlantic with ports on the Great Lakes and St. Lawrence Seaway.

The "Laurentian Channel" is a deep submarine valley off the coast of eastern Canada in the Gulf of Saint Lawrence. This creates a deep trench through the centre, with comparatively shallow coastal waters closer to Newfoundland and Cape Breton Island. These bathymetric conditions have been known by mariners to cause rogue waves. An infamous location in the strait for shipwrecks during the age of sail is St. Paul's Island. It is referred to as the "Graveyard of the Gulf".

The strait is crossed daily by the Marine Atlantic ferry service linking Channel-Port aux Basques, and North Sydney. Ferries have been operating across the strait since 1898 and a submarine telegraph cable was laid in 1856 as part of the transatlantic telegraph cable project.

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