In California, off the coast of the Big Sur region, scientists are working really hard using some very evolved technology. They are hoping to discover large holes scattered at the bottom of the Pacific Ocean. But if we look at it practically, we can wonder how they actually hope to see the seafloor cavities? Of course they will need some hi-tech help, so they managed to get a sophisticated robot to help them with the project. But what they will discover thanks to it is quite troubling. Not only are there thousands of holes, but what caused them could potentially create a lot of worry.