After testing one by one, he dived ten meters deeper near the shipwreck, where there were also marine shrimps, crabs, conchs, sea urchins and other activities.

Xia Yu finally confirmed that he could indeed breathe freely in the ocean within fifty meters like a marine creature, without holding his breath or being affected by water pressure. He would test the deeper sea area later. He thought that it had been a while since he was in the water, so he was ready to float up so that his father would not worry. Although he had contacted it with an underwater surface communicator, he decided to speak with facts and notified Xia Mingguang that he was ready to float up.

While waiting for the plug-in to arrive, he had already trained enough patience and was not in a hurry for a while.

Even though he confirmed that the water pressure did not cause any load on his body, Xia Yu still did not surface directly. He had no worries about nothing to do anyway. When enjoying the beautiful scenery in the sea, he would grab seafood into the space.

After the surface surfaced, Xia Yu swam to the boat again and tested the freestyle speed. He felt that it was okay, but it made Xia Mingguang stunned and speechless. But even though he witnessed that Xia Yu was swimming faster than the world champion, Xia Mingguang did not even let him participate in a swimming competition to win glory for the country, he still wanted to be as low-key as possible.

After returning to the boat, Xia Yu briefly reported the situation to his father so that he would not worry about his safety.

The facts are right in front of you, and Xia Mingguang will have to believe it even if he doesn’t believe it!

Xia Yu was as calm and calm as ever. He rested on the boat for a while, drank some water, and magically took out some shrimps from the space and ate sea urchins raw to replenish the energy consumed.

Xia Mingguang's adaptability was gradually developed, and he didn't consume much, so he didn't need it.

After a while of rest, Xia Yu was preparing to dive again, and Xia Mingguang still asked him to keep in touch at any time. As for himself, he felt like a windy person.

Xia Yu nodded and replied yes. He was actually a little worried about himself. If he could do it, he would forget everything. When divers went into the water to salvage, they often had this situation. They always wanted to seize the time and do more things. They didn't want to come out of the water until the limit of the supply of compressed air bottles.

He also talked about the main task of this dive, which was the formal extraction of the wrecked cultural relics.

If it were in the past, even if it was to salvage the scattered porcelain, it would be very troublesome. The father and son had worked together, and Xia Mingguang was worried that he would put down long ropes, and then the things he could bring were extremely limited every time, so the porcelain had to be careful not to bump into each other.

Fortunately, Xia Yu is not greedy, and he is indeed more greedy for life. He has never been wrong.

Now that Xia Yu's ability evolves, he is more suitable for salvaging the treasure of the shipwreck. Not to mention his ability underwater and on the shore, he can just use space to collect items, just like a tailor-made for the treasure of the shipwreck.

When Xia Yu dived, he made an appointment with his father that he had to come up once an hour, which is also the limit of ordinary divers working underwater. Divers basically do shift diving, and they will take an hour or two before getting into the water.

After he dived to the shipwreck this time, he soon began to extract the shipwreck cultural relics.

According to Xia Yu's preliminary research results, the ship had sunk for almost three hundred years. Because he had previously salvaged water from the surroundings and the surface of the shipwreck, the latest porcelain base was "made in the Yongzheng period of the Qing Dynasty", but the number was not large, and most of them were from the late Kangxi period.

The burial of mud and sand also protects most of the hulls, and the above is also occupied by various marine creatures. But unlike those scrapped ships deliberately placed on the seabed, it is equivalent to artificial shelter for marine creatures and an excellent place for diving and sightseeing.

The most natural state here is present. Xia Yu’s first task now is to clean up the mud and sand without damaging the hull itself and the cultural relics inside.

Generally, sand extraction machines are used for sand extraction and digging operations during underwater archaeological excavation. As for silt, it is even more difficult to deal with without damaging cultural relics, and it also tests the patience of divers. You can refer to the Southern Song Dynasty shipwrecked as a whole. When performing land excavations, you still need to be careful and carefully calculated to safely extract them.

When performing cultural relics extraction operations under the sea, the situation will only be more complicated.

Fortunately, Xia Yu now has plug-ins, which can save him a lot of effort.

If the ability is further upgraded and the entire shipwreck can be collected in one go, it is naturally the best. But now he can only think about it and still have to do it step by step.

After opening the Baoding Space, he can use the ability to collect items through the space to isolate the mud and sand from the cultural relics. Simply put, he only collects cultural relics into the space, but the mud and sand still needs to be moved away manually. If he uses his mental power completely, the consumption will be particularly large.

According to his previous verification, this shipwreck is a typical red single ship, equipped with two types of sails in China and the West.

As early as the Ming Dynasty, the Portuguese who obtained the right to residency used a large number of Chinese sailing ships to conduct regional trade between China and Southeast Asia. However, in actual use, the Portuguese found that Chinese sailing ships were thin and not flexible enough, and they were not as capable of resisting wind and waves and pirate attacks. However, Western sailing ships also had high cost and required a large number of skilled sailors to operate sail cables.

Therefore, the Portuguese combined the long side of the Western sailboat with the hard sails of Chinese sailboats and invented a new type of sailboat that has the advantages of Chinese and Western sailboats. The Chinese call it the old gate ship. The old gate ship is more suitable for ocean sailing than traditional Chinese sailboats. In addition to the use of the Portuguese, it was also widely copied by shipmakers in Guangdong Province and used for trade in Chinese merchants. Most of the red single ships built by the people of Guangdong Province are of this type of old gate ship.

Therefore, he could not judge which country the owner of the ship was from just by looking for evidence.

Xia Yu had already done all preparations within his abilities according to the standards of underwater archaeology, but did not take photos and videos...

At this time, when cleaning up the mud and extracting the cultural relics from the cabin of this old gate ship, in addition to the most common porcelain, he also discovered a bronze cannon worth about 500 kilograms.

Xia Yu suddenly became excited. He was particularly interested in bronze cannons, not just because men were born to love to dance with swords and guns. Maybe they could reveal more information about the owner of the ship through bronze cannons. Just from the shape of the ship and the cargo on the ship, there was no way to make preparations and judgments. Because at that time, whether it was Chinese or foreign ships, the bulk cargo carried were basically tea, silk, porcelain, metal, etc.
Chapter completed!