Beneath central Sydney, people will be able to walk for almost a kilometre entirely underground between the CBD’s western and eastern sides, once the missing link in a web of tunnels is finished as part of the city’s largest metro rail project.

Completion of wide pedestrian tunnels under the northern part of the CBD will leave Sydney with similarities to cities such as Toronto and Montreal in Canada, and Sapporo in Japan, where extensive underground links allow people to move about without setting foot above ground in the depths of winter.

While Sydney’s climate is temperate, completion of the missing link in the underground walkway system as part of the $25.3 billion Metro West project will allow people to keep dry on wet days – although they will have to pass through some ticket gate

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