The world becomes small when we are on the rope. We're hanging on with one arm, adjusting our float with the other, letting the air out and keeping a bit heavy, checking instruments, depth, time and air. All is planned in advance. The ascent is the physiologically most important part of the dive. You either get this part right or you stay out of the water. If you overstay, miscalculate, run out of air or lose your way back to the rope in all that jumble of wreckage, then you are not doing it right either. And its cold. Its too often terribly cold on that rope of ours. Sometimes just a few quick minutes and a safety stop, but often were hanging there for fifteen, twenty, thirty minutes. Shivering cold, numb and stiff limbs, heads in a stupidified haze.

Death comes easy if you make mistakes under water. One such absolute mistake is if you get lost inside a shipwreck and run out of air. This should be simple and basic knowledge for all of us, but somehow the statistics seem to show a constant annual toll of careless divers. It's really not up to this site to tell you how you should do your diving, but we will give you a few words of warning.
NOLINK: great divesites
NOLINK: shipwreck
NOLINK: marine biology