Zac Sayed's act of rebellion by swimming at disused quarry ends in tragedy Zac Sayed who drowned in a disused quarry at Mt Gravatt. Picture via Facebook Source: Supplied AN ACT of rebellion alongside his cousins turned to tragedy for a teenager when he trespassed into a disused quarry and leapt in for a swim. Zac Sayed, 16, who was not a strong swimmer, jumped into the popular and illegal swimming hole at Mt Gravatt around 1.45pm on Sunday and never resurfaced. His body was found at 7am Monday after police divers used sonar equipment to search the large expanse of water. Tributes flowed for the student yesterday as he was remembered as a hard worker, energetic and "the best kid." Musa Moses Mohammed wrote a farewell to his "little cousin"on social media. The sign at the entrance to the quarry says "No Swimming." A young man named Ossama Aghbash wrote: "You were one of the most energetic and best kid (sic) I knew, so sad to hear your (sic) gone." More than a dozen people gathered at the scene after the youth vanished on the weekend with the Afghan community holding prayers for Zac last night. Police said the 16-year-old was with family members when he went for the fatal swim. Acting Inspector Ian Park warned of the risks of swimming in unattended areas and said no one in the group were "particularly strong swimmers." "My understanding is they were attempting to swim to the other side," he said. As a result he has gone below the surface. The Child Protection and Investigation Unit is preparing a report for the coroner. It is understood police will investigate if the teens trespassed to get to the swimming hole as part of the investigation. The quarry is a popular spot for swimming, with videos online showing people jumping off cliff faces into the bright water. The BMI Group owns the quarry and is in the process of redeveloping it into a residential subdivision and parkland. General manager David Evans said it is fully enclosed with a 2.4m high chain wire topped with barbed wire, with signs warning people to keep out and that swimming is dangerous. "Unfortunately, some choose to cut the fences, ignore the warning signs or worse steal them as souvenirs and jump from the cliffs into the void," he said. He said the fence needs regular repairs due to trespassers and the most recent repairs were made last Thursday. "The problem is exacerbated by a number of websites and YouTube videos which encourage young people to trespass onto the site and to jump into the water," he said. Police at the scene where Zac Sayed drowned. Perhaps the owners of these sites will now display some responsibility and remove them. He said the owners and employees of the BMI group were distressed by the "unfortunate accident" where the teenager lost his life. "Our condolences go to the relatives and friends of the young man whose life has been cut short by this tragedy," he said. ANU College of Law Professor Peter Cane told The Courier-Mail the owner of the land could be liable. "In principle, yes, they are a landowner and you have responsibilities towards people who come on to your land even if they are there without your permission," he said. It all depends on the facts of the particular case because the ultimate question that has to be answered is: Did the landowner take reasonable care in all the circumstances to prevent the accident happening? There are principles like people have to take care for their own safety and in relation to kids particular situations can be allurements for children. Prof Cane said in the 1980s and '90s there was a number of cases in which people diving into shallow pools were seriously injured or drowned at waterholes.