The attack on a boy in Sydney Harbour is the latest in a four-fold increase in shark bites along the NSW coast in recent years.

A man fought to save his girlfriend from a fatal bull shark attack only to be nearly mauled to death by the animal himself. Swiss tourists Livia Mühlheim, 25, and Lukas Schindler, 26, were swimming at a beach north of Sydney, Australia, when tragedy unfolded.

The Caribbean Sea is often associated with crystal-clear water, vibrant coral reefs, and post-card perfect beaches. But beyond these beautiful features, the Caribbean is home to something less frequently seen.