Sharks close four Sydney beaches News.com.auSydney beaches add shark-spotting drones to protect swimmers SMH.com.auMajor Boost to Shark Drone Program to Improve Beach Safety Surf Life Saving NSWWatch 9News Latest Stories – Season 2026 – Drones will watch every single beach across Sydney 9NowShark-spotting drones are about reassurance – not full protection The Conversation