What do you need to prepare for diving? There are more and more hobbies in modern society. Some people like skydiving, some like skiing and some like diving. Of course, these exercises need to be prepared before. What should I prepare for diving? I have compiled an article for you about what you need to prepare for diving, hoping it will help you.

What do you need to prepare for diving 1 What do you need to prepare for diving?

1, necessary equipment for diving preparation.

1. 1, breathing tube. With the use of goggles, swimmers don't have to look up for air. The design of drainage valve is added to make drainage easier and simpler. Especially suitable for people who can't breathe while snorkeling and swimming.

1.2, buoyancy control vest. The buoyancy in the water can be adjusted through the air inlet and outlet valves in the water, and it can be used as a life jacket on the water.

1.3, diving suit. It can keep divers warm and protect them from rocks or other animals and plants in the water. Special waterproof and compressive design, larger underwater viewing angle. The material of silicone is suitable for swimming and diving. Especially for beginners who are afraid of choking on their noses.

1.4, respiratory regulator. It is a tool for divers to breathe underwater.

1.5, flippers. The unique duck web enhances the effect of drawing water, making people pedal faster and kick more easily in the water. Especially suitable for people who pursue speed.

1.6, buoyancy control vest. The buoyancy in the water can be adjusted through the air inlet and outlet valves in the water, and it can be used as a life jacket on the water.

2. A nearsighted friend needs to prepare a mirror.

For nearsighted students, if they can't wear contact lenses, they need to confirm with the diving shop in advance whether there are myopia glasses suitable for their own degree. Some dive shops need to charge extra or book in advance. If the diving shop doesn't have a suitable mirror, you need to buy it yourself in advance. If you are used to wearing contact lenses, you can use them in class. Remember to tell the coach that you are wearing contact lenses.

3. Other items that need to be prepared for diving.

Besides the necessary equipment, what else should I bring?

You need to bring a swimsuit/bikini/swimming trunks, which can be worn directly under wet clothes.

Others can be selected according to the diving location and your own situation:

Bath towel: It is best to dry it as soon as possible after filling it with water. Some dive shops will provide bath towels on board. If not, prepare one yourself. It is generally recommended to choose quick-drying materials, which are small in size, convenient to take and fast to dry between dives.

Coat/bathrobe: If the boat is long and it is easy to catch cold when driving, it is best to prepare a windproof coat, bathrobe, etc. /kloc-within 0/5 minutes, go back to the dive shop to rest during each dive, basically without preparation; 15-30 minutes, it is recommended to prepare bathrobes; For more than 30 minutes, especially in areas where speedboats go out to sea, such as Semporna and Palau, it is best to prepare a thick coat.

Precautions for diving

1, into the water

Make sure all the equipment is ready before launching. There are two ways to enter the water: land entry and ship entry. There are two ways to enter the boat: sit by the boat, pour water backwards and jump forward. Only the essentials of land entry are introduced here.

Put on your equipment and walk into the sea with your diving partner. When the water reaches your waist, stand still, put on your goggles first, and then put on your flippers. Leaning on the other person's shoulder when wearing flippers can keep your body stable. After this, put the regulator in your mouth and start breathing from the second decompression part. Turn around, wipe your feet and continue to walk in the sea.

Step 2 dive

After arriving at the scheduled dive site, the two sides stood face to face, clearly signaled the other side's "OK" gesture, then signaled "dive" with their thumbs down, and gradually dived into the sea along the natural slope at the bottom of the coast. The first time you experience a diver, don't dive more than six meters.

On the way to diving, always observe the water pressure gauge and master your own depth.

Releasing the pressure in the ear hole is another important thing to pay attention to when diving, otherwise the ear hole will feel pain. The method is to hold your nose and inhale through your mouth, then close your mouth and nose to exhaust. At this time, you will feel a "poof" in your ear, as if something is coming out.

What are the benefits of diving?

1, diving has the effect of slimming.

The environment of water is very different from that of land. Studies have proved that people's resistance in water is more than 800 times that in air. The great resistance brought by water will increase the difficulty and total amount of exercise, so that you can complete an action with more than 6 times the usual strength, thus achieving twice the result with half the effort. On the other hand, the thermal conductivity of water environment is more than 20 times that of air, even if it is still in water, it will consume a lot of energy. Like a boiling egg, it cools much faster in water than in air.

2. Diving can beautify the skin.

In fact, diving has a unique beauty massage effect on people. People basically do not sweat when they exercise in water, which reduces the stimulation of salt in sweat to the skin. At the same time, the skin turns red and hot after being slapped by water and waves, which dilates capillaries, improves the circulation function of subcutaneous blood vessels, and has a special massage function, which can reduce the relaxation and aging of the skin and make the skin smooth, smooth and elastic.

What to prepare for diving 2 1, light equipment

Light equipment refers to mirrors, breathing tubes and flippers-the three treasures of diving. You only need these pieces of equipment when snorkeling, while scuba diving needs heavy equipment, which refers to buoyancy control devices (BC), breathing regulators, diving instruments, gas cylinders and so on. There are countless styles and colors of diving equipment. You can choose equipment with different characteristics according to the form, purpose, preference and physical characteristics of diving.

2. Mirror-the window to the underwater world

When you try to open your eyes in the water, you can only see a vague scene. This is because the density of water is higher than that of air, and light will be refracted when it reaches water. The focal length of the eyes is adjusted according to the light in the air, so the mirror keeps a cavity in front of your eyes, so that you can see clearly. The biggest difference between goggles and goggles is that the former covers not only the eyes but also the nose. This is because the pressure in the nasal cavity needs to be balanced in order to prevent squeezing when diving, so swimming glasses cannot be used for diving.

The general face mirror is composed of reinforced safety glass lenses, rubber or silica gel edges that fit the face, and a fixed and adjustable headband. The reinforced safety glass lens can prevent it from breaking into slender glass fragments, which is highly dangerous. Silica gel is stronger than rubber, because it is 3-4 times more durable than rubber, and it is not easy to make skin allergic, so it is softer and more comfortable. Some mirrors are equipped with a drain valve, which is a one-way valve to drain the accumulated water in the mirror. The two most important points in choosing a mirror are suitability and comfort, as well as other equipment. Improper mirrors may leak water, causing allergies and reducing the fun of diving.

To test whether the face mirror is suitable, just gently stick it on your face (without wearing a headband) and inhale through your nose. The right face mirror will stick to your face until you exhale. Another thing to pay attention to is to make sure that you can easily hold your nose outside the mirror. There are many kinds of mirrors, including Dan Toujing, double lens and multi lens. Usually only two lenses are equipped with lenses that can correct vision.

Before using the mirror for the first time, you can gently wipe both sides of the lens with a soft cloth stained with toothpaste to remove the protective oil film. After each use, the mirror should be thoroughly cleaned with clean water and placed in a dry and ventilated place to avoid direct sunlight. If the mirror is used in seawater, it is best to soak it in warm water for a few minutes to prevent corrosion of salt scale. If you can't clean it immediately after use, you'd better put the mirror in water, because it is difficult to completely remove the dry salt.

3, breathing tube-easy breathing

First of all, when you are resting or swimming on the water, looking down or looking for something in the water, you can breathe through the breathing tube to reduce the air consumption in the gas cylinder. Secondly, when there is wind and waves on the water surface, the height of the nozzle of the breathing tube is usually higher than the height of the waves to avoid water from pouring into the mouth. Thirdly, if you get out of the water far away from the boat or the shore, there is little air left in the tube. The breathing tube can make it easier for you to swim back to the boat or the shore, and your face can be naturally placed in the water. In snorkeling, breathing tube is a necessary equipment, and you can stay in the water all day without looking up. Just try it.

The general design of breathing tube is an elbow with one end open and the other end biting. The upper part (tube) of the breathing tube is usually a semi-rigid plastic tube, and the interface tube in the lower part is mostly silica gel. A suitable breathing tube should have a suitable radian (suitable for your face), with an inner diameter of about 2 cm and a length of 30 ~ 35 cm. A suitable breathing tube should be comfortable and easy to breathe. When trying out, you can put the bite between your lips and teeth and put the tube on your left ear. Bite comfortably, without scratching your mouth or causing chin fatigue, and straight in your mouth.

4, flippers-provide a strong driving force.

The wide area of flippers can provide you with powerful motivation, so that you don't have to paddle to generate motivation, so that your hands can be freed for other jobs. Fins are mainly divided into two types: heel-less and feet. Flippers are generally used in warm waters or snorkeling. Diving boots cannot use heel flippers. Large and hard flippers are used quickly, but they are easy to get tired and cramp; Small and soft flippers lack propulsion.

Fins come in different materials, designs and features. The design of flippers includes: keel, which is used to increase the hardness and balance of flippers; Drain holes to reduce the resistance to fins and improve efficiency; Diversion ditch, let the flippers slide horizontally and improve the speed. Choose flippers according to your body shape, physical strength and diving environment. Comfort is very important.