Silfra is a rift formed in the divergent tectonic boundary between the North American and Eurasian plates and is located in the Þingvallavatn Lake in the Þingvellir National Park in Iceland.
The Lachine Canal is a canal passing through the southwestern part of the Island of Montréal, Quebec, Canada, running 14.5 kilometres from the Old Port of Montréal to Lake Saint-Louis, through the boroughs of Lachine, Lasalle and Sud-Ouest.