South Australia’s first diving fatality occurred on Friday the 28th of December 1951 at Port Noarlunga when two brothers, Pat and John, along with their friend Arnold decided to go spearfishing in the reef. Arnold received a strong pull on the rope and hauled it to help John resurface. John then appeared, and Arnold reached down to help his friend out of the water. Suddenly, John jerked back and fell back into the water. Arnold was taken aback by this and assumed he had dropped his speargun and gone down to retrieve it. As the minutes passed, he became increasingly concerned, but he resisted the urge to leap into the turbulent water, fearful of colliding with John or his speargun.