Are you afraid that some people are using drones to spy on your island ? Then this Kickstarter project is for you. The Personal Drone Detection System is raising a modest $8,500 in order to test and produce a desktop sensor system that can tell when a drone is loitering within 50 feet. So if you're at work and someone flies a drone with a GoPro near your home, the system will alert you.
to save lives in case of decompression sickness during diving, you can have a decompression chamber on your island