Leisure Diving: Introduction To Three Diving Methods
Snorkeling is swimming with a breathing tube. People keep floating on the sea level and watch the creatures on the seabed through face mirrors. The most basic equipment needed is only breathing tube, face mirror and fins. However, because many novice divers do not adapt to the fins, and it is not easy to maintain balance when wearing fins, many snorkeling experiences only need face glasses, breathing tubes and life jackets to complete the initial snorkeling experience. The snorkeling depth is limited, only about 1-3 meters, so the species of marine organisms they see are also relatively limited.
Scuba diving is when you dive with oxygen bottles and other equipment on your back. With the help of steel block sinking, the whole person can control buoyancy to travel under the water and observe marine organisms at a close distance. Scuba diving, also known as scuba diving (scuba - full name is "self contained underwater breathing apparatus"), refers to the diving activities carried out by divers with underwater breathing system. There are open circuit respiratory system and closed circuit respiratory system. The principle is to use the regulator device to convert the compressed gas in the gas cylinder into the pressure that can be used for normal breathing of human body. In our daily description, we colloquially refer to this method as "deep diving". Deep diving is divided into unlicensed experience (conventional diving depth is 5-12m) and licensed diving. Licensed primary ow (maximum depth is 18m) and advanced AOW. Generally speaking, leisure diving will not exceed 40m.
Free diving refers to the movement of not carrying an oxygen bottle, only adjusting breathing through their own vital capacity, holding their breath and diving as deep as possible, that is, diving by holding their breath. Free diving is a popular diving activity in recent years. Because it is not the same diving system, it is difficult to compare in terms of difficulty. However, free diving is still a kind of extreme sports, which requires high water and buoyancy control skills and is dangerous. Generally speaking, beginners are not recommended to try.