<p>Shane Lee was boating on the waters of Lake Macquari in New South Wales on August 14 when he spotted a shark. This video shows the hammerhead swimming in the lake.</p><p>Shark sightings at Lake Macquarie used to be a rare occurrence, but it is believed fishing restrictions have improved its ecosystem, thereby providing more food for sharks, according to reports</a>. Credit: Shane Lee via Storyful</p><br />