Robbio left half of his team on duty, while the rest drove the speedboat to the deep waters.

The speedboat drove a few kilometers away from the beach and came to a deep water area.

Fari pulled Chen Cao: "Chen Cao, diving without equipment has a certain danger, once you feel uncomfortable, you must immediately float, never risk continuing down, this sport has killed many people, high water pressure will pierce your eardrum, and it will directly burst your lungs." ”

"Rest assured, I won't gamble with my life. ”

Robbio threw Chen Cao a goggle: "Chen, Falido has explained to you the precautions for diving, right?"

"Well, I know it all. ”

"Be safe, the game is secondary, the main thing is to be safe. ”

The two lifeguards first put on a full set of diving equipment and went into the water, and the two of them were to ensure the safety of Chen Cao and Robbio.

Chen Cao and Robbio jumped into the water at the same time and began to dive.

When Chen Cao descended to about ten meters, the lifeguard wearing a diving suit made a gesture to Chen Cao.

"Ten meters, up, down. ”

Chen Cao gave a thumbs up, then pointed to the bottom and continued to dive.

Ten meters is generally the limit of an ordinary person, and this ordinary person is an untrained person.

And those who have been trained can dive to about fifteen to twenty meters.

If you go down, the water pressure will increase dramatically, and it will start to be dangerous.

When Chen Cao reached twenty meters, he didn't feel the pressure.

At least he was relatively relaxed, and Robbio had already dived twenty meters.

The two continued to dive, and two lifeguards in wetsuits kept watching the two and would immediately rescue them if they showed signs of abnormality.

Chen Cao is still relatively relaxed, and can feel the increase in water pressure, but it is still within an acceptable range.

Forty meters, the lifeguard asked the two again, up, down?

Fifty meters, up, down?

At this time, Robbio's decisive choice came to the fore.

Chen Cao continued to go down, and when he reached sixty meters, Chen Cao finally floated up.

In fact, 60 meters is not Chen Cao's extreme depth, and when Chen Cao reaches 60 meters, he feels that he still has room for improvement.

With the help of his companions, Robbio struggled back to the speedboat.

Half a minute later, Chen Cao also came up.

"Chen, have you ever dived without equipment in the past?"

"No, it's the first time, and it's the first time I've dived this deep. ”

"If you train, you can get to at least 80 meters. ”

Robbio was able to dive to 72 meters after a long period of special training.

And because he hadn't dived for a long time, this time Robbio couldn't go down any more when he reached fifty meters.

This is a great test of physical function, Robbio belongs to the self-awareness, and has a strong sense of safety.

When he sees the slightest danger, he gives up immediately.

Among unequipped divers, there have been deaths within three hours of breaking the world record.

It is also because of the death that this record is not recognized.

The so-called world record refers to the challenge of a person without being injured or dying.

If the person is dead, then there is no point in going deeper.

"Chen, if you come to me and I'll give you training, maybe you have a chance to break the world record. ”

"No, I can't. Fali was the first to jump out and object: "What are you doing with this useless and dangerous world record, Chen, I don't allow you to do such a dangerous project." ”

"Well, I also think Farrie is right, this project is too dangerous. ”

Even martial arts are not so dangerous.

Fighting is a battle between man and man, but diving is a fight between man and nature.

Claude, who was also on the speedboat, was very upset, and originally hoped that Robbio would be able to defeat Chen Cao and frustrate Chen Cao's spirit.

As a result, Chen Cao also abused Robbio.

Defeating Robbio is tantamount to defeating everyone in their Coastal Rescue Team.

At this point, no one feels that Chen Caozhong is useless.

......

Back at the beach, Chen Cao and Fali sat under the pedestal shelf of the headquarters, where no one disturbed them.

At this time, Heima and Baima came in, and both of them had a jar around their necks, which was specially used to hold money.

They earn money while taking pictures on the beach and picking up money at the same time.

When you pick up money, you will take it and throw it into the other person's money jar.

In just over an hour, their jars were full.

They came to Chen Cao and Fali to help them pour out the coins in the money jar, so that they could continue to make money.

"Come, I'll calculate how much money you've made. Fari beckoned, and Herma ran up to her.

Farri poured out the coins of the money jar, but saw that there seemed to be a coin in it that was not a penny.

Fali picked up the coin and looked at it: "Chen, look at it, is this a gold coin?" ”

Chen Cao was stunned for a moment, then took it and took a look, it was quite heavy, and the texture was the same as gold.

And there are some traces of soft-shell creatures on the surface, which seem to have been washed up on the beach by the sea.

"It's gold. Chen Cao rubbed the surface of the gold coin clean.

On the front is a picture of the cross of Jesus, and on the back is a head.

Judging from the workmanship of gold coins, the history should be relatively long.

"Is there a shipwreck or something nearby?" asked Farry.

"I'll ask a professional. Chen Cao said, took out the phone, and dialed Mr. Dorman's phone: "Mr. Dorman, did I disturb you?"

"No, I won't be able to work in the morning, is there anything wrong with you?"

"I'd like to ask you to help me identify something, and you can help me see what it is. ”

"Do you want to send me a photo directly, or do you want to bring me a physical thing?"

"I'll just send you the picture. ”

"Good. ”

Chen Cao sent a photo of the gold coin to Mr. Dorman, who immediately said: "This is the 17th-century Vatican minted by the Vatican to commemorate the 14th Clement XIV coin, where did you get it?"

"Mr. Dorman, how is the price of this gold coin?"

"The price of one is about 30,000 to 50,000 US dollars, and there are few Clement XIV commemorative coins at present, so the price is not bad. ”

The value of a thing is calculated based on its rarity, and if there are things all over the street, it must be of little value.

But if it's unique, then the price will go up by hundreds or thousands.

The same goes for an antique or a work of art, if there is only one in the world, it could be worth a million or even ten million dollars.

"Thank you, Mr. Dorman. ”

"If you have less than 20 pieces, I can collect it at a price of 50,000 yuan, if you have more than 20 pieces, I will receive it with 40,000 dollars, if it is more than 40 pieces, I can only give you a price of 30,000 dollars, how many pieces do you have now?"