Have you ever worked as a lifeguard? You have to spend hours scanning the beach or pool for any sign of swimmers in danger. Sometimes, there's too much beach to cover. Sometimes, a lifeguard can't get there in time.
The solution? Drones.
At least that's what officials in Chile are hoping. A new project is using remote-controlled drones to deliver life jackets and other flotation devices to swimmers in danger.
These drones can fly around three-quarters of a mile out and will use GPS for advanced navigation. They have external speakers so guards can talk to victims and instruct them what to do, and also have LED lights attached for when it's dark out.
Watch the demonstration below to see these drones in action: