(It's on the shelves, I won't send any testimonials, I say it here, ask friends for support! Thank you!)

After a lot of explanations, Lin Feng knew a lot of diving knowledge.

The oxygen cylinders he bought were not pure oxygen, but compressed air, and the oxygen cylinders were not called oxygen cylinders, but should be called compressed air cylinders.

With a volume of 12 liters, it can be used for 20 minutes normally, and it can be used for half an hour if it exceeds the limit, but it is a bit dangerous.

And this value is not fixed, but also according to the depth of the dive and the amount of exercise to calculate, the deeper the depth, the greater the amount of exercise, then the time is relatively shorter.

Lin Feng calculated, he wanted to explore the area that his mind did not cover, then the minimum was one thousand meters, that is, he had to march one thousand meters out and then return, back and forth for two kilometers.

Even if you ignore the depth and amount of exercise, it is only half an hour.

Swim 67 meters per minute!

Will he be able to do it?

Obviously, it was impossible for him to do it, especially with such a huge amount of exercise, the compressed air bottle would be consumed in less than half an hour, or even less than twenty minutes.

Knowing this, Lin Feng was also a little dumbfounded!

It seems that he thought too simply, and thought that divers with oxygen tanks would be able to stay in the water for an hour or two.

Now you can only explore it for 500 meters, and then change to the other side, and come back another 500 meters.

In this way, it should be no problem to do two dives in two directions, and your safety factor is much higher.

Although wealth and wealth are in danger, it is in the case of basically being able to save their lives, not to die.

Of course, Lin Feng's biggest insurance is that he can return to the island instantly at a crisis, but in that case, what can the three military brothers do?

Call them back to Australia to find him?

How do you explain it?

The military brother on the fishing boat, when he saw Lin Feng learning diving knowledge, he knew that Lin Feng wanted to dive, although he didn't understand Lin Feng's plan, but Lin Feng had just been discharged from the hospital after all, and he was injured.

So he came over and said, "Boss, you can't dive now, your wound will crack open, and besides, this lake should be very deep, and you can't get to the bottom of the lake, so there's no need to go down and see, we'll wait, wait for them to salvage the gold, and then we'll take advantage of the chaos to grab ......"

"Yes, there are many people staring at this gold, it will definitely be chaos at that time, no one can take away the gold so easily, in the words of you Chinese, we can benefit from fishermen." ”

Duojia also persuaded and said, I really don't understand that Lin Feng wants to dive, don't say that the water depth here is more than 1,000 meters, even if it is dozens of meters, can you still bring the gold up if you go down?

Even, she even came out with the profits of Chinese fishermen.

It seems that on the fishing boat, she really thinks of herself as a fisherman, and Kuva on the side is very sure of supporting Brother Jun and Duojia, and she doesn't want Lin Feng to take risks, although this is a lake, it is not more complicated than the hydrology of the ocean.

Old divers don't dare to dive in unfamiliar waters at will, not to mention that the boss is still a novice who doesn't know anything.

Therefore, Lin Feng was preparing to dive, but the three people on the boat did not understand, because it was really unnecessary.

But Lin Feng was not easy to explain, hearing what Brother Jun said, he immediately smiled indifferently: "It's okay, anyway, I'm idle now, I don't know how many days it will take to salvage gold, I just use this time to practice my diving skills." ”

"If you want to practice, you can let Duojia accompany you!" Brother Jun finally said helplessly, he also knew that there was no way to persuade Lin Feng, from the first day he met, he knew that Lin Feng's subjectivity was very strong, and the things he decided rarely changed because of other people's words.

Let Duojia accompany you, how can Lao Tzu swim over, this can't be agreed.

Lin Feng slandered in his heart, but he said: "Just four air bottles, add more and then go into the water, I'll still practice a fart! Okay, don't talk about it, it's decided, I know it in my heart, you can deal with the situation that may happen at any time!"

All right!

Lin Feng said this, and the three of them didn't say anything anymore, the longer they followed Lin Feng, the higher Lin Feng's prestige in their hearts became, this is a subtle subconscious of superiors and subordinates.

Just like last night's camping, Lin Feng sat with the three of them, there was almost nothing to say, it was very dull, and when Lin Feng walked away, Brother Jun and Dogakova talked and laughed.

In this way, Lin Feng was familiar with the diving equipment all afternoon, preparing for the night dive, and mentally estimating the speed of his swimming and the appropriate depth.

If it is too shallow, the bubbles exhaled by breathing are easy to be discovered, and only when it is deeper, the bubbles float and break to form small bubbles, so as not to attract attention.

As for whether the salvage ship will use sonar to probe around, it probably won't, no one is as stupid as he is to dive closer.

When night came, the four of them ate some fast food, and the three military brothers were on alert.

The most dangerous thing is at night, during the day you can see everything around you clearly with a good line of sight, but at night you have to guard against someone who is just a small fishing boat, but it can't withstand a collision.

So you have to look around all the time, all three people have strong flashlights in their hands, and there are searchlights on the fishing boats.

Not only them, but other ships were equally guarded.

Lin Feng didn't understand these people, why did they stare at it like this, wouldn't it be good to camp on the shore?

He couldn't come, if it wasn't for his intention, he wanted to snatch the gold, he would definitely deploy it on the shore, and then ......

Suddenly, thinking of this, he understood.

Oh, yes!

Who would dare to say that these people were not deployed ashore?

After waiting for a while, Lin Feng felt that the time was almost up, so he said to Duojia: "Duojia, help me put on a diving suit, I'll go into the water and have a look." ”

"What, you want to practice diving at night?" exclaimed Duoga, a novice diving in such a huge lake at night is simply looking for death!

"No!" Brother Jun also heard it, and hurriedly came over, grabbed Lin Feng's arm, and there was a trace of anger on his face.

Yes, Brother Jun is really a little annoyed, he won't look at Lin Feng's nonsense like this, the wound is not healed, Lin Feng is going to be discharged from the hospital, he wants to come to the lake area, he also endures it, Lin Feng wants to practice diving, he also endures it.

But this guy is just dying, and he still wants to practice at night, and he can't bear it anymore.

Looking at Brother Jun's anger, as well as the eyes of Duojia and Kuva, Lin Feng couldn't cry or laugh, knowing that they had good intentions, but what about his plan?

"Brother Jun, for so long, do you feel like I'm the kind of person who messes around?"

Lin Feng said seriously, he wanted to convince Brother Jun that as long as Brother Jun didn't stop him, the two women wouldn't stop him.

After listening to Lin Feng's words, Brother Jun wanted to say something, you have always liked to mess around, but you didn't dare to say it after all, looking at Lin Feng's serious expression, Brother Jun was a little hesitant.

But practicing diving at night is really nonsense, and the risk is too great.

If Lin Feng is an old diver, he will not object, the key is that Lin Feng has not dived once, it is far worse than him, if Lin Feng is allowed to enter the water, in case of an accident, he can't be saved, the lake is too deep.

"Lin Feng, why don't we go to the shore first tomorrow, and you can practice first?"

Brother Jun still didn't let go, he didn't even shout the boss, and directly called Lin Feng's name.

"Brother Jun, I don't want to explain anything, and I understand that you are worried about my safety, but I have to go into the water tonight, okay, it's decided. ”

There is no way, Lin Feng can only come hard, just like an arbitrary tyrant.