Construction is due to start next month on a pedestrian tunnel linking Toronto with the downtown Billy Bishop island airport.
Toronto Port Authority president Geoff Wilson says the 240-metre-long tunnel will be both above and below ground.
Passengers going into the tunnel from the Toronto side will enter through a pavilion, and head down through elevators.
Wilson says construction is expected to take two years.
Currently, the only way to get to the Billy Bishop island airport is by ferry.
It’s a 120-metre trip, making it one of the world’s shortest ferry rides.
In terms of passengers handled, Billy Bishop was Canada’s 14th busiest airport in 2010.