The stepfather of a man who drowned in Darling Harbour has lobbied the government several times to erect a permanent barrier along the water's edge but has been rebuffed each time.

However, Gregory Magro's demands may be coming to fruition with the government considering a safety risks review that could change the face of Darling Harbour drastically.

Temporary fencing and signs at Darling Harbour and King Street Wharf before New Year's Eve. Credit:Wolter Peeters

Mr Magro's son, Jason Daep, 19, drowned after being pushed into the water during a fight outside Pontoon Bar in 2012.

As thousands of people flock to Darling Harbour for New Year's Eve, his stepfather said: "I fear more people will drown if no barrier is installed".