Main Channel (Ontario)

45.346388°N 81.812222°W / 45.346388; -81.812222 The Main Channel is a strait that separates Lake Huron from Georgian Bay and Ontario's Manitoulin Island from the Bruce Peninsula.^[1]

Prior to the formation of the Main Channel, a land bridge directly connected Manitoulin Island to the Bruce Peninsula, allowing for easier land-based migration along the western shore of Georgian Bay.^[2]

Several islands can be found within the strait, including the popular tourist destination of Flowerpot Island, and the strait is the site of Canada's marine-based national park, Fathom Five National Marine Park.