Syrup Beaver
pants log
350 sounds deep. At what point does the pressure actually start to hurt? Additionally, at what point do you lose your hearing?
I'm not sure what the "crush depth" for a human would be.
The Navy has classifed how deep they've gone...
The world record for open-circuit (non umbilical) diving is around 1,000 feet down.
Not on air obviously, various blends of trimix.