OK, forgive my ignorance, but here goes. I know almost nothing about cave diving, except that it exists.
An OW student of mine asked me a question about the incident at Eagle's Nest, and I had no idea how to answer his question. So I thought I'd ask here.
Suppose you are in a cave 300 feet below the surface, and some distance beyond the entrance. How does your depth gauge/computer reflect an accurate depth? There may only be 30 feet of water above you, the rest being earth. How exactly odes that work, or does it?
An OW student of mine asked me a question about the incident at Eagle's Nest, and I had no idea how to answer his question. So I thought I'd ask here.
Suppose you are in a cave 300 feet below the surface, and some distance beyond the entrance. How does your depth gauge/computer reflect an accurate depth? There may only be 30 feet of water above you, the rest being earth. How exactly odes that work, or does it?