Surf lifesavers have closed Cottesloe beach indefinitely after large amount of seaweed washed up on shore overnight
A spokesperson for Surf Lifesaving WA said it was too dangerous to set up a swimming area while the thick layer of seaweed blanketed the water.
She said SLSWA would monitor the situation during the day.
Surf Life Saving WA lifesaving operations supervisor Craig Bowley said the beach was closed completely about 8am.
“It poses a danger to swimmers, because it’s so thick and it’s so heavy weaker swimmers would get held down in it, they wouldn’t be able to get to the back and the clear water,” he said.
“So it’s just precautionary really, keeping them out of the thick weed.”
Mr Bowley said the weed could also harbour cobblers, which were excruciatingly painful if swimmers stood on one.
He said last week’s weather conditions were likely to blame.
“Those storms the last week would have churned up a lot of weed and pushed it in here and we’re probably going to need another one to get it to take it away,” Mr Bowley said.
Cottesloe local Rob Appleyard said he had been swimming at the beach every day for the last six or seven years but could not remember a time when he had not been able to go into the water because of the weed.
“It’s the first time I’ve ever actually walked and seen signs where you can’t swim because of seaweed, and I can see why you can’t,” he said.
“It’s amazing, you’d actually get held underneath if you went out there I think.”