Nine beaches in Sydney, Australia, have been closed after mysterious ... where thousands of washed-up black balls led to the closure of Bondi Beach, among other tourist hotspots.

Picture this: You've booked a trip to Sydney, dreaming of sunny beaches ... Sydney isn't just Australia's favorite playground ...

Some of Sydney's most popular beaches ... Among the swimming spots affected was Queenscliff Beach, north of Manly Beach, with one local telling Daily Mail Australia she was not surprised by ...