Sydney’s northern beaches will remain off-limits tomorrow following a series of four shark incidents in New South Wales over a 48-hour period.

“Due to persistent water clarity challenges, all beaches in the Northern Beaches region will stay closed for at least another full day, spanning Thursday. We will continue to assess the situation as conditions evolve,” announced the council this afternoon.

The closure decision was collaboratively reached by the Department of Primary Industry and Surf Lifesaving NSW after thoroughly evaluating the day’s water quality.

READ MORE: ‘Worst possible outcome’: Growing concerns for a boy attacked by a shark in Sydney

The evaluation revealed that water visibility remains poor due to the recent torrential rains and flooding that have impacted the state.

These conditions increase the risk of shark activity.

Northern Beaches Council will keep the community updated as they continue to review water conditions.

The closure comes after four shark attacks in the span of 48 hours across NSW up until yesterday. 

The youngest victim, 12-year-old Nico Antic, remains in hospital in a critical condition.

Twenty beaches were closed yesterday as authorities warned swimmers of safety after the string of attacks.

The closures come as authorities have also warned of "sewage debris balls" washing up at Malabar Beach in Malabar and Foreshore Beach in Botany Bay following the weekend of heavy rain.

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