Sydney's northern beaches lost up to 40 metres of coastline in the massive storms that pounded the NSW coast on the weekend, and it's not over yet.
It has been 40 years since Sydney has seen such fierce storms and the residents of beachside communities like Narrabeen and Collaroy have been left counting the cost.
Mitchell Harley, a senior research assistant at the University of NSW's Water Research Laboratory, told SBS News they had just recently measured Narrabeen's coastline as the widest it had been for 40 years.
Up to 10 to 15 metres of waterfront land washed away at Collaroy overnight as residents return to their homes to assess the damage after being evacuated on Sunday night.
"Within three hours we had a garden that was just totally destroyed - gone," a woman told Network Seven as she looked at her home from police tape as the sun rose on Monday.
