On Tuesday, October 15, mysterious black balls appeared on Coogee Beach in Sydney. It remains unclear where they came from, what they are composed of, or if they pose any danger to humans.

Though it's a bit smaller than its better-known northern counterpart Bondi, Coogee Beach is the quintessential spot for those looking to soak up some sun and swim in Sydney's famous waters.

Less buzz but better value than Bondi, with fewer sunburnt backpackers. Coogee gives the kind of laid-back beach vibes that are perhaps more typical of an Aussie coastal suburb than its brash ...

It’s an awesome feeling for the guy that was just a kid playing around Coogee, that now I’m gonna be performing.’ ...