Drone captures a shark circling below 3 oblivious surfers

A drone was flying over a beach in New South Wales, Australia filming the surfers when the pilot, David Finlay, spotted a shark swimming below three surfers. David wanted to alert the surfers so he ran down to inform the lifeguards who could then raise the alarm. The lifeguards were off duty and David informed surfers who were out the water. Luckily the shark, a grey nurse, which doesn’t usually attack humans, caused no harm and swam away from the surfers.