What Are Tar Balls, Mysterious Debris Closing Sydney Beaches?

Lifeguards closed Sydney’s iconic Bondi Beach and several other locations on Thursday due to the appearance of mysterious black “tar balls” along the shoreline. Thousands of these hydrocarbon-based spheres, ranging from pea to tennis ball size, have puzzled locals and tourists. The exact source remains unknown, prompting officials to close all Waverley Beaches for further investigation.