Rough surf along the Sydney coast has left one man dead and another missing.
Lifesavers patrolling Warriewood, on the northern beaches, pulled an unconscious man from the surf on Saturday morning.
Ambulances NSW said CPR was performed but he died at the scene.
It is believed the 23-year-old was swept from rocks.
At 3.15pm (NZT) another 23-year-old man was swept into the water at nearby North Curl Curl beach, police said.
A search involving jetskis and helicopters was still under way on Saturday evening.
NSW Lifesaving manager Dean Storey said with dangerous surf conditions and sunny weather set to continue people should not let the temptation of a swim trump their better judgment.
"We're imploring people to use common sense and respect the conditions," he said in a statement.
"We'd advise people to stay out of the water and away from rock platforms and headlands until these conditions moderate."
The state's ambulance service issued a warning of its own, urging beachgoers not to swim alone and not to drink alcohol before entering the waves.
Ambulances NSW reminded parents to supervise children near water after a one-year-old boy was taken to Nepean Hospital in a critical condition.
He had fallen into a pool at Mulgoa in Sydney's west.
Paramedics on Saturday took a man to St Vincent's Hospital after he was rescued by surf lifesavers at North Bondi. A 40-year-old man was pulled from the water at Bondi Beach and taken to hospital in a stable condition.
At Cronulla a 40-year-old man and a 50-year-old woman were treated after they got into difficulties in the water.
At Mona Vale paramedics treated a 13-year-old boy and took him to hospital with a head injury after he was swept off rocks.
Meanwhile a fisherman at Merry Beach, on the NSW south coast, had to be rescued from the water after trying to reel in a catch.
Police have been told the 42-year-old man was fishing with a friend at 12pm (AEDT) on Saturday when he hooked a large fish.
He walked to the edge of the rocks to reel it in but toppled into the water. The man had to be winched to safety by helicopter.