Since the early 20th century, SCUBA diving has gone from an incredibly risky undertaking well out of reach for all but the fabulously wealthy to a relatively safe sport with a rapidly growing participant community.

SCUBA stands for Self-Contained Underwater Breathing Apparatus, so named for the tanks and other gear which divers carry on their backs allowing them to breathe underwater. Although this gear termed “life-support equipment” and a commitment of real training is necessary in order to become safe and proficient enough with it to dive even in a small lake or quarry, technological advancements and improvements in science and engineering have enabled longer times underwater, deeper dives, and reduced danger in this exhilarating activity enjoyed by athletes and nature lovers.

Having originally been popularized by Jacques-Yves Cousteau and Emile Gagnan, who built the Aqualung (a name still used in Britain to describe Scuba equipment today), Scuba is now enjoyed by millions of people worldwide ranging from locations as temperate tropical waters to under-ice sub-arctic diving for scientific purposes or by adventure seekers.

Many people are unaware of the length of time necessary to attain Scuba proficiency and certification – in the United States, the two major certification bodies are National Association of Underwater Instructors (NAUI) and Professional Association of Dive Instructors (PADI). Depending on the course, new divers can get certified in as little as three to four days of actual instruction – since the courses are based on performance standards and not on hours of instruction, this number can be higher or lower. Also, if a diver wishes to do more technical and dangerous dives or to use more advanced equipment, more training would be necessary in order to ensure safety.

Anyone who enjoys vacations to tropical areas or who appreciates nature and enjoys the water can now consider Scuba diving, thanks to the advances mentioned in science and engineering, as well as the establishment of standardized certification and training programs worldwide. If you’ve never considered it, much more information is available online to help you decide if Scuba makes sense for you.

A scuba diving computer, which is better known as a dive computer, is a digital device that can do the task of managing nitrogen without requiring the diver to have a watch or dive table. As a combination of a timer and a depth gauge plus some intelligent software that helps to compute absorption of gases, the scuba diving computer is a popular device that is used by most experienced divers.It is very necessary for the diver to know about remaining nitrogen as well as decompression and this may also be done by manual dive tables, but the scuba diving computer is much more valuable as it can greatly improve the dive experience through automation of the management of nitrogen.In reality, the scuba diving computer will not plan a dive for the scuba diver, who is still solely responsible for correct and safe planning in conformance with health guidelines. On the other hand, the scuba diving computer will be able to keep track of the depth as well as time spent underwater, calculates the amount of nitrogen that the diver’s body contains and alerts the divers when these levels become too high and also helps the diver to take suitable decompression stops whenever necessary.What HappensWhen the diver performs a traditional scuba dive there are just two variables that are used to describe the dive and these are maximum depth as well as time. When one calculates the amount of absorbed nitrogen one assumes that the diver had plunged immediately to maximum depth and remained there for some time and later returned to the surface.In such an instance, the dive profile is said to be square, because when graphed on an X-Y axis, for instance, it produces a rectangular like trench. However, in reality the dive is not like that and a diver would descend slowly, swim about and change depth to find his or her way around reefs or bottom formations and then slowly return back to the surface.The main advantage of a scuba diving computer is that it allows for longer bottom lines and dive tables having a square profile are mostly conservative having exaggerated absorption which tends to lean towards the safe side. However, the scuba diving computer enables a curved profile and regularly allows the diver to stay submerged for longer periods of time.Therefore, before choosing a scuba diving computer it may also be wise to check out the brand and model as well as ascertain whether the batteries easy to change, and is the computer’s interface easy to read and is it backlit or not?

Cave diving is a very exciting adventure for those who enjoy scuba diving. It also involves exploring caves that are natural made and man made, but filled with water. This is a very popular scuba diving adventure that many individuals enjoy. It is important to have a good grasp of scuba diving as well as be in very good physical health prior to going on such an excursion.

It is a good idea to take a course that provides education in the area of cave diving. This will ensure you have the proper knowledge to enjoy this type of adventure. You will be trained in procedures, safety, and other aspects that will make the experience a memorable one.

Cave diving involves the use of more equipment than basic scuba diving does. Cave diving doesn’t involve the use of a snorkel. The protective wear for cave diving needs to be much thicker. This is because cave dives can be twice as long as normal dives. Plus the exposure to the water and the cooler cave climate can result in divers getting extremely cold if they are not wearing the proper protective wear. Since the cave dives last longer, a larger gas supply is needed.

Safety is important to any kind of diving, and cave diving is no exception. While this is a very exciting adventure, it can result in injury or death is safety precautions are not taken. Always have three sources of light available. Do not exceed the breathing limits for your equipment, no matter what exciting finds you discover. This can lead to injury and death. Keep an eye on your gas levels. Once you have used 1/3 of it, begin heading back. This will allow you plenty in the event you get lost or need to share yours with another diver.

There may be numerous exits from the cave once you enter it. Make sure you clearly mark your exit so that you can easily find it. Leaving a cave can become a huge maze that will consume your gas reserves if you aren’t able to find your exit immediately. Make sure to always follow the rules of your training while cave diving.

Cave diving is a very challenging and exciting way to explore caves that have water. Safety precautions should always be followed to ensure the outing is a fun experience for everyone. Proper training combined with safety results in responsible cave divers who know their limits and respect them.