Water flows around ice, formed around Niagara Falls due to subzero temperatures in Niagara Falls, Ontario, Canada, January 22, 2019. (Photo: VCG)

Ice and snow cover branches near the brink of the Horseshoe Falls, due to subzero temperatures in Niagara Falls, Ontario, Canada January 22, 2019. (Photo: VCG)

A man helps his son with his mittens during a visit to Niagara Falls, Ontario, Canada January 22, 2019. (Photo: VCG)

A couple takes a photo of ice formed around Niagara Falls due to subzero temperatures during a visit to Niagara Falls, Ontario, Canada January 22, 2019. (Photo: VCG)

A couple takes a photo of ice ice formed around Niagara Falls due to subzero temperatures during a visit to Niagara Falls, Ontario, Canada January 22, 2019. (Photo: VCG)