photos 20150731. Toronto’s new Billy Bishop Island Airport 853 ft pedestrian tunnel runs 100 ft beneath the surface of the lake. July 31, 2015 Vik
photos 20140321. Mainland access shaft to excavated tunnel leading to Toronto’s island airport and future tunnel schematic. March 21, 2014 Vik According to the Toronto Port Authority website, this is “set to become the world’s first underwater pedestrian tunnel connecting an airport to mainland.”