[1] It stretches approximately 160 nautical miles (300 km) and is bordered on the east by Georgian Bay, on the west by the St. Marys River, to the north by the eastern Algoma District and part of the Sudbury District, and to the south by the islands of Manitoulin, Cockburn, Drummond and St. Joseph.
There are full-service marinas in various small communities along the shore providing sufficient provisions.
A large section of the north shore is bordered by La Cloche Provincial Park providing for a scenic environment.
[3] The only road crossings of the North Channel are at the Little Current Swing Bridge, which carries Highway 6 between Manitoulin Island and the mainland of Northern Ontario, and the Bernt Gilbertson Bridge, which carries Highway 548 from the mainland onto St. Joseph Island.
Some areas of the North Channel are protected by organizations such as the Georgian Bay Land Trust and Escarpment Biosphere Preserve.