Residents and visitors have been advised to stay away from Jarosite Headland at Bells Beach with fears cliff collapses could continue.
VicEmergency issued a warning over the weekend following a fatal incident at the beach on Friday.
Police said a 28-year-old man died when a cliff face, up to 30 metres high, collapsed about 2.15pm on New Year’s Eve.
The man was one of six people sitting below the cliff face. Three of the people were hit with falling debris.
The man suffered serious upper body injuries and died while being airlifted to hospital in Melbourne.
Two others, a man and a woman both in their late 20s, were taken by ambulance to a Geelong hospital with life-threatening injuries to their arms.
The incident led to the closure of the section of the beach between Point Addis and Southside, where more cliff collapsed on Saturday morning.
In its warning VicEmergency said there was a risk more collapses could continue in the coming days.
“Landslips and rockfalls are unpredictable and can occur without warning,” it said.
“The cliff may continue to move for hours or days afterwards.”