The Underwater Cave Divers

The world down here is alien, foreboding and magnificent. Rick thinks if the moon were at the bottom of the sea. Minutes blend into hours as rick and john glide through what is literally one of the most inhospitable places on earth. The mud and silt are a swirling blanket, and they can hardly see more than a foot in front of hem. And then, at approximately 780 meters, they hit a wall, literally. Their passage is blocked by what looks like a limestone and granite landslide. Wedged into it is eric's emergency scooter. It's a sign he might be alive. They figure he tried dig across the passage. Maybe he found an air