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While the barriers to this underwater world were gradually being broken down, a small group of experienced divers were starting to push the limits of traditional recreational scuba diving. This movement, which has been christened ‘technical diving’, started off with just a few dedicated individuals. Over the last few years, this area has seen a huge increase in interest, and now a significant number of divers are moving towards technical diving.
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So what makes this area one of the best technical diving hotspots in the world? I personally am partial to our deep 300-foot walls adorned with ancient sponges and populated by immense lingcod and healthy schools of rockfish.
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Training agencies differ in the degree of self sufficiency training at recreational levels.
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Who is Richard Pyle really? A biologist or a rebreather diver?
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Also, a diver may be able to maintain his depth at the bottom by lightly finning. However, finning too hard and for too long could lead to excessive CO2 production.
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What constitutes an emergency and what kind of emergency may I face?
What do I need to bring in order to reasonably deal with possible emergencies?
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It is reliable, more or less foolproof, and its simple construction is very robust. These are good properties to have when one’s underwater breathing depends on them. However, as we will see, there are also a number of disadvantages.
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I look around. I see Porto Polo just a short distance down the coast. At my feet is a big buoy under which 350 meters of rope is suspended with a 50kg weight attached in the other end. It is waiting for me.
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Few instructors, however, remember to mention at this point that dive computers or bottom timers can do all this, easier faster and safer.
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However, almost clandestinely, some CCR divers and Instructors decided to found what is now called DIRrebreather and to set up logical and simple rules, so we could apply the DIR principles to CCR diving.
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Decades have now passed since this pioneering event. Inventors of diving equipment have steadily created more perfect and trouble-free underwater devices, but cave diving in Russia is still an activity for a devoted few.
We can’t help it. Depth has been an allurement since humans first ventured into the underwater world. In 1943, soon after development of the first modern Aqua Lung, Frederic Dumas dived to 61.5 meters breathing compressed air. In 1947, Cousteau’s team (formed in 1943) made experimental compressed air scuba dives to 90 meters. A decade on, Andrea Doria dives become popular for the few at the cutting edge, in July 1956, Peter Gimbel and Dumas made the first dive to the sunken luxury liner, off the coast of New York.
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