"So far, most samples identified are marble-sized with a few larger in ... In October last year, spherical objects the size of golf balls appeared on the sands of Sydney's famed Bondi and Coogee ...

Months after mysterious black balls forced the closure of some of Sydney's most famous beaches, small marble-like debris has begun washing up on the city's shores again. The balls - this time grey or ...

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The bulk of the mysterious greyish balls that appeared on Sydney's Northern Beaches were the size and shape of a marble.(Supplied: Northern Beaches Council) ...

"A small number of marble-sized balls mixed in with pumice have also ... Fatbergs can grow to enormous sizes, sometimes weighing several tons and stretching for hundreds of feet.

Mysterious grey balls sparking the closure of nine ... "So far, most samples identified are marble-sized with a few larger in size," a Northern Beaches Council spokesperson said.

Nine Sydney beaches have been closed after the discovery of numerous marble-sized balls. The debris, said to be a combination of white and grey in colour, appeared along the shoreline in the city ...

Months after mysterious black balls forced the closure of some of Sydney's most famous beaches, small marble-like debris has begun washing up on the city's shores again. The balls - this time grey ...

Nine beaches in Sydney were shut down for visitors on Tuesday after mysterious white and grey marble-sized balls washed up ashore, disrupting the summer holiday season. Popular beaches like Manly, Dee ...