The ocean has always been a big part of Glen Butler's life. He's been a surfer for 50 years and, in that time, he says he rarely thought about sharks. 'You're aware you're stepping into their environment, so you're cautious,' the 61-year-old told the BBC. However, Mr. Butler's confidence on the water was shattered last month when fellow surfer Mercury Psillakis was killed by a great white shark shortly after he left the water at Long Reef in Sydney's northern beaches. 'It's shaken us up a bit,' Mr. Butler admits, as he reflects on the impact of the tragic incident on the local surf community.

The killing has revived a long-running debate about how to keep beachgoers safe in Australia's waters, particularly regarding the implementation of shark nets, which some believe serve as an effective safety measure. Authorities in New South Wales have historically installed shark nets since 1937 along various beaches from September through March, leading to their continued deployment each summer despite the controversies.

Conservationists argue that these nets not only harm other marine life but do little to actually prevent sharks from reaching popular surf spots. Despite their contested effectiveness, many beachgoers still prefer their presence as a protective layer. As Australia leads the world in shark attacks, the recent incident has prompted discussions about a range of alternative safety measures, including the use of drones for surveillance, more eco-friendly barriers, and educational tools for surfers.

The renewed scrutiny on shark netting practices comes as experts warn that shark numbers are rising, with communities observing increased shark sightings in their waters. The dialogue surrounding these nets continues to evolve, especially as public opinion seems to shift towards seeking out less harmful and more effective alternatives for ensuring safety in Australia's treasured coastal waters.