Flashlight failure
For some reason, people find it entertaining to put on scuba gear and dive through a twisting underwater labyrinth. Perhaps there’s a sort of thrill you get when going into places where death is almost certain, but you’d never find us in situations like that.
This guy’s parents went on such a dive and found themselves in a pretty sticky situation. The dad’s flashlight dies, and the mom didn’t have one on her. Thankfully, they had a camera with a flash that they could use to light up the scene in front of them, allowing them to stay on track with the group.