Months after mysterious black balls forced the closure of some of Sydney's most famous beaches, small marble-like debris ... The balls - this time grey or white in colour - have prompted councils ...
Nine beaches in Sydney were shut down for visitors on Tuesday after mysterious white and grey marble-sized balls ... were closed to visitors after small black balls washed up on the shore.
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 October, hundreds of black balls resulted ...