Dangers of shipwreck diving.

Here are the dangers of what shipwreck divers do. Such as Narcosis or decompression sickness, both come from pressure underwater. Every 33 feet you go below the surface, your adding one atmosphere. If you stay down for a long period of time nitrogen goes into your blood stream and to much of this will cause narcosis which can be compared to alcohol intoxication. Once you hit 130 feet you find easy tasks difficult. At 180 feet you start to hallucinate. Below 200 feet all the little things are annoyances to you. Good divers board the boat with a plan not just making it up as they go. Its learned from this chapter that no man is safe during a deep shipwreck dive until he comes up on the deck.