Originally Posted by
Exiled_Devil
I did some free diving in my younger days, and can say that the first issue is that depth is very deceiving when you dive. Even compared to scuba - something about looking down onto something from the surface makes it all look very distant. From my experience, the hatch looked about 10m-15m down, which is still deep. It is amazing how far that sees when you are low on oxygen, and the water, somehow, makes it look even farther. However, that distance is doable for a novice. I was diving that deep without a 'weight belt' on my first few tries. I wasn't staying down there for more than 1-2 seconds, but I was keeping up with my buddy who was experienced (of course, he stayed down for another 30 seconds)
In short, I found the dive plausible. And his reaction to finding air in the hatch also plausible.
Exiled