Police, Marine Rescue WA, and SES were searching this afternoon for the surfer off the coast of Wharton Beach in Cape Le Grand, Condingup, 60 kilometres east of Esperance.
Beachgoers said a massive shark went for the male surfer in chest-deep water.
“There were screams. There were people saying like ‘get out’, everything – it was a very panicked moment,” witness Joscelin Boissieux said.
Dozens of surfers in the water saw what happened.
“We heard a scream and everyone got out of the water,” Boissieux said.
There was only a surfboard left floating around about 30 metres from the shore.
“The water next to it was dark, with a shark’s fin circling around.”
That board was found with bite marks and police were were called to the scene at 12.10pm (3.10pm AEDT).
According to monitoring website SharkSmart, a public report was made about a shark sighting 50 metres off the shore five minutes later at the same beach.
“It is believed the surfer was the victim of a serious shark bite incident,” police said.
Boissieux said the man’s partner was on the beach when he was attacked.
“She was shocked,” he said.
The coast around Esperance has a history of fatal attacks.
In 2020, 57-year-old Gary Johnson was killed diving near Cull Island and surfer Andrew Sharpe was fatally mauled at Kelp Beds.
Three years earlier, teenager Laeticia Brouwer was also killed surfing.