pier
© James Lane/AAPSt Kilda Pier in Melbourne
Police rescue woman from dark and chilly Melbourne waters still clutching her mobile phone

A tourist is lucky to be alive after she fell into Melbourne's Port Phillip Bay while browsing on Facebook, police say.

The woman was walking along St Kilda pier engrossed in social media when she walked off the pier into the dark and chilly water about 11.30pm on Tuesday.

A quick-thinking witness raised the alarm. Police officers were able to point out the distressed woman floundering in the water to the water police, who rescued her about 20 metres from the pier. It is believed the woman did not know how to swim. She was taken to hospital for treatment.

There will be no need for a lost property report as the woman kept hold of her mobile phone throughout the ordeal.