Diving is a vogue and noble sports today, need professional equipment and manpower support, also need to be more comprehensive services, a lot of people think that diving consumption is more expensive than other sports. Cheap diving is has its inevitable market, but the lucky there are many security hidden danger in the concept of survival. Such as rent a cylinder, to rent a boat, and whether or not water visibility is very poor, even some people just learn to dive or did not take part in any diving training, take the fish dive hunting gun, etc.) (underwater hunting is a special course, do have some personal behavior, some of them are through the dive shop to do some cheap, dive shop is rich, no constraint. Less money, but life is precious. Price, service quality and safety is proportional to the, this is a permanent constant formula. Accident is usually occurs in a casual moment, we need to do is how to the greatest extent to ensure safety, standardize the market for diving, it is not empty talk, need the support of the broad masses of divers.