NAIL-BITING footage has surfaced online showing a great white shark swimming close to a boat. The shark’s fin can be seen sticking out of the ocean’s surface as the predator slowly moves around the vessel, getting closer and closer.

The clip was filmed by Salvatore Sicurello who was on board the boat off the coast of Lampedusa. It was uploaded to Facebook and has been shared thousands of times.

Mr Sicurello believes the shark he saw measured around 25 feet in length. Initially, social media users had debated whether or not it was a shark.
The great white shark is considered the most voracious apex predator in temperate marine ecosystems anywhere in the world.