Most SCUBA divers don't train freediving, next time at the pool see how far you can dive on one breath. Then imagine being panicked, in the dark, in a ship you

Most SCUBA divers don't train freediving, next time at the pool see how far you can dive on one breath. Then imagine being panicked, in the dark, in a ship you don't know that well, in the machine room you've never been in before, where now everything is upside down and at an angle, filled with water and all kinds of stuff floating around.