What should divers do before getting started?

The following is from: Soso

If you want to learn diving, you should first consult a good club. This club should have a good coach, which is very important, followed by tuition and evidence collection fees. Then, according to the diver's requirements, physical examination is very important, and the body cannot have diseases that are not suitable for diving, such as otitis media, sinusitis, epilepsy, heart disease, lung disease and so on. Because these diseases may cause harm to the body under high pressure. Then prepare your own equipment. Generally, novices should prepare their own face mirrors, breathing tubes and flippers, because it will be more hygienic. Of course, you can rent it. Most clubs offer these services. If you don't know which equipment is suitable for you and where to buy it, you can consult your coach and you will get good and professional help. The rest is to prepare some time and feel better.

Factors of unsuccessful initial diving.

The first experience of diving brings us freshness, curiosity, excitement and mystery, as well as a little fear and tension.

1 nervousness is the biggest culprit leading to the failure of the first diving. Nervousness makes people stiff and slow, their thinking agility drops, and they are short of breath. When they are highly nervous, they may forget to breathe. Listening to the guidance of professional coaches and trusting them is the best and most effective way to eliminate nervousness.

Because they have never used the regulator for breathing experience, a few people are not used to it at first. You should get used to practicing breathing with a regulator on shore.

After launching, balancing ear pressure is the most important procedure for the first diver to start diving, but most first divers often forget to balance ear pressure or fail to do it well because of tension or other factors (attracted by underwater scenery), resulting in eardrum pain and unable to continue diving. Solution: before diving, you should form the consciousness of doing ear pressure balance in your brain and know the importance of doing ear pressure. After diving, you should do ear pressure every one meter. When your ears are uncomfortable, you should do ear pressure balance in advance, especially for beginners. It is too late to do it when your ears start to hurt.

There are few divers who experience diving for the first time, and the method of holding the regulator in their mouth is incorrect, which causes the water in the regulator to flow into their mouth, and will not discharge the water in the regulator, resulting in fear (whether it will suffocate). It's actually quite simple. The bite of each regulator is designed according to ergonomics, and a tray can make people's mouth bite more easily. As long as you easily bite the tray with your teeth and wrap your lips around the bite of the regulator, water will not enter. As for the drainage of the regulator: If there is water in the regulator, the water in the regulator can be blown out by the breathing tube drainage method (blowing method).

5 mirror drainage is not possible, or mirror drainage is not skilled. Face mirror is afraid of water (snot water) and I don't know how to do ear pressure. Drainage of the mirror: first, try to face up, then press the upper edge of the mirror with your hand and exhaust with your nose. According to the principle of pressure, water can be discharged from under the mirror.

If you want to experience the fun of diving better, it is very important to listen to the theoretical knowledge carefully before diving. The above are all people who have experienced diving for the first time, and some difficulties will be encountered when diving. I hope it will help friends who are about to experience diving.

Instructions for experiencing diving

1, in good health, both men and women aged 6-65 can participate in experiential diving activities.

Before diving, the coach will give you adaptive training in the shore water or swimming pool.

3. International star coaches will join hands with you to dance with fish in colorful coral reefs.

Being unable to swim does not prevent you from taking part in diving activities. Myopia is equipped with diving myopia glasses with related degrees.

Our center ensures your safety and insures you with100,000 yuan (RMB).

6. Guests suffering from hypertension, cardiovascular and cerebrovascular diseases, asthma, otitis media, pregnant women and drunkenness cannot participate in the diving experience.

7. When diving, you can't collect and trample underwater creatures such as corals and shellfish.

Guide to marine entertainment

1. Tourists renting motorboats should be guided by our coach.

2. Anyone suffering from heart disease, hypertension, mental illness, epilepsy, pregnant women, drug addicts and 16, people over 60 years old are not allowed to rent a motorboat to go to sea.

When renting a motorboat, tourists must wear life jackets and stay in the water depth of 0. Start at 6 meters to avoid damaging the machine. When landing, slow down at offshore 100 meters to prevent people from being hit and equipment from being damaged by rushing too fast.

4. When renting a boat by car, you are not allowed to chase each other and do dangerous actions. /kloc-If you find obstacles such as boats, boats and people around 0: 00, you should slow down and avoid them immediately to avoid collision.

5. If the charterer disobeys the instructions of the on-site coach, violates the above provisions, and operates improperly, resulting in boat damage and personal injury accidents, the parties concerned shall bear all economic responsibilities and legal consequences.

Safety code for diving

Accidents in diving are almost all human factors, not irresistible. Accidents can be avoided or reduced if the following safety rules are observed.

1, body and mind must be in the best condition.

2. Excellent swimming ability.

3, accept the correct training guidance.

4. Establish a diving plan.

5. Be familiar with the diving area. Diving in unfamiliar areas should be led by people who are familiar with this area.

6. Bring first aid supplies.

7. Measure your ability (yourself and equipment).

8, check the connector, use in good condition.

9. Use complete and necessary equipment.

10, avoid diving alone and don't act without your partner.

1 1. In case of injury, fatigue or untimely birth, get out of the water and go ashore.

12, pay attention to the depth and be careful to rise correctly.

13. Observe the diving depth limit: 30m.

14. Understand and apply the method of underwater communication.

15, use quiet air.

16, high-pressure gas cylinders should be well maintained and handled correctly.

17, don't drink before diving, don't overeat, and eat food that is easy to produce gas.

Diving type:

Usually diving activities can be divided into snorkeling and inflatable diving.

Skin diving refers to the diving method in which divers dive as long as they can hold their breath in the water until they can't exhale and then surface. It can also be further divided into a "floating" part that only floats on the water surface and does not dive into the water, and a "holding your breath" part that dives into the water.

The so-called gas diving means that divers can get gas supply during diving. Scuba diving refers to the way that divers carry an air cylinder and breathe in the water for a long time, and it is also the most common diving method at present. The so-called diving generally refers to scuba diving. Another kind of air supply diving means that when divers are underwater, they transport air from the water surface to divers with the help of air supply pipes, which are usually only used for special purposes such as fishing.

A further breakdown of diving types can make a dazzling list. For example, submersible can be divided into hard diving, soft diving, semi-closed-loop air supply, on-demand air supply and self-provided air supply. According to diving methods: unsaturated diving and saturated diving; It can be divided into air diving, nitrogen-oxygen mixed gas (artificial air diving), helium-oxygen mixed gas (artificial air diving), hydrogen-oxygen mixed gas (artificial air diving) and other mixed gases.

Of course, for ordinary divers who are mainly sightseeing, they can be classified according to different purposes. Usually, sightseeing diving is to watch colorful marine life at zero distance, such as various fish or turtles, coral reefs and so on. , as well as diving designed for exploring sunken ships and shark diving designed for watching sharks. Judging from the landform of the tour, there can be ice diving, cliff diving and cave diving.

It is these unknown journeys with different purposes that make people experience various levels of colorful underwater feelings from relaxation, surprise to excitement.

Three, the basic requirements and safety of diving:

Because diving is not popular in China at present, it is still a sport with a very high threshold in the public impression, but in fact it is just the opposite.

First of all, as an activity suitable for all ages, divers have no age limit. Of course, considering that people who are too young will have some difficulties in understanding the course content, most diving guidance groups stipulate that the minimum age for obtaining a diving certificate is 12 years old.

Secondly, people who are not good at swimming can also dive, because water quality is not the main problem of diving. But you must also have a certain swimming ability. To register for diving practice abroad, you generally need to be able to freestyle about 20 meters. Of course, people who can swim the distance of 100m freely, are not afraid of water, dare to open their eyes in the water, and are in good physical condition are relatively more suitable for diving. It should be pointed out that people in the following situations are not suitable for diving, including drunkenness, heart disease, epilepsy, cold, nervousness, asthma, diabetes, high (low) blood pressure, related otolaryngology diseases and so on.

Third, myopia can also dive, because there are myopia mirrors. However, it is not recommended to wear contact lenses, because lenses are easily washed away underwater. More importantly, when the diver ascends, the eyes will start to discharge nitrogen like all parts of the body, and contact lenses will hinder this process and be harmful to the body.

Diving time safety table:

Water depth time limit water depth time limit water depth time limit

10m without 2 1m50min 33m20min.

12m 200min 24m 40min 36m15min

15m100min 27m30min 39m10min.

18m 60 min, 30m 25 min, 42m10min

Note: This form is only applicable to those who have not dived within 12 hours.

Cylinder service time:

Deep dive time

0-10m120min

10-20m 60 min

20-30 minutes, 40 minutes