Even if it would be intact and somehow floating at 3000 meters it would be probably very hard to find it. Just think about submarine warfare, even the big milit

Even if it would be intact and somehow floating at 3000 meters it would be probably very hard to find it. Just think about submarine warfare, even the big military ones can be pretty stealthy. And this is a small submarine mostly made of carbon fiber. Thats probably even hard to distinguish from a big fish with sonar. And if this thing is on the ground then sonar doesnt help. I think if this thing has no ping device on board (to make active sound), then they probably never find it. Assuming its still under water of course.