Lu Yuan originally planned to arrange a robot to escort the sharks to Sea X, but in the end he decided to go himself.

What he was worried about was not that the sharks would escape, but that it was unlikely that the sharks would escape under the escort of the robots.

What he really fears is that a migration of this magnitude will be discovered by the population, causing a worldwide panic.

Although the level of science and technology is not very high today, there are still many satellites after all, and the key is that they have to pass through the ocean desert when they migrate.

As far as Lu Yuan knows, there are now more than a dozen satellites in the world that are constantly staring at this sea area.

Not only that, but there are also dozens of research ships conducting scientific research in this sea area.

The water in this area is so clear that there is no cover from Lu Yuan, and the possibility of being discovered even in deep-sea operations is very high.

......

After a week of migration, Lu Yuan and the sharks finally arrived at their destination.

This is a very beautiful valley in the South Pacific, with a depth of more than 3,000 meters.

It's also far from the civilized world, and with the exception of the occasional plane or two that pass by on a Antarctic expedition, ordinary ships and planes don't come here at all.

The shark people are housed here and are difficult to detect by outsiders.

After Lu Yuan placed the merman, he arranged for some bionic robots to set up several outposts nearby.

Half of the purpose of these outposts is to monitor the development of the merman, and the other is to prevent ordinary people from approaching.

After the last outpost was built, Lu Yuan nodded with satisfaction.

After some thought, he decided to go to the underwater crater not far away.

Lu Yuan will not forget that this is the first real demon beast he has seen.

It only took Lu Yuan 20 minutes to come to the vicinity of the pothole on the bottom of the sea.

He greedily absorbed the nearby aura.

"The aura here is too sufficient!" Lu Yuan sighed in his heart.

"It would be nice if I could completely occupy this place!" Lu Yuan couldn't help but be greedy.

It's no wonder that he is here, this is the place where Lu Yuan has seen the strongest aura on earth.

Now that he has reached the ninth level of Qi training, the next step is to find a way to break through the foundation building period.

According to the records of the exercises, when the Qi training period breaks through to the foundation building period, a large amount of spiritual energy is required.

This place is the place where Lu Yuan can find the most abundant spiritual energy now.

Except here, he really couldn't think of a better place on earth than here to break through the foundation building period.

This time, he came here to test the strength of the sea monster, if the strength of the sea monster is insufficient, he hopes to subdue the sea monster.

When Lu Yuan came to the top of the pit, the sea monster lurking at the bottom of the sea had also sensed Lu Yuan's arrival.

When Lu Yuan released his divine sense and was about to detect the sea monster, the sea monster had already appeared in front of him.

"I'm grass!"

Lu Yuan couldn't help but burst into a foul mouth.

Looking at the sea monster that appeared in front of him, Lu Yuan quickly dispelled his original plan.

After releasing some kind information to the sea monster, Lu Yuan evacuated the place as quickly as possible.

Looking at Lu Yuan, who was leaving in embarrassment, the sea monster actually showed a very humane look. Its eyes were full of banter.

ran all the way to the sea near Yingzhou, and Lu Yuan stopped.

He couldn't help but pat his chest, and he was afraid for a while.

Then I was very glad that I was really ignorant and fearless.

"I didn't expect that the sea monster that was not too strong in my image would actually be so powerful!"

The sea monster in the divine consciousness perception just now is at least a sea monster in the foundation building period.

Such a powerful sea monster is fortunate that he didn't provoke it, otherwise not only himself, but also the mermaids who have just migrated and Yingzhou will face annihilation.

After repairing on a small island, Lu Yuan finally regained his composure.

Three days later, he came to the sea where the Mariana Trench is located.

The Mariana Trench (Mariana Trench) is located in the northeast of the Philippines, near the Mariana Islands, at the bottom of the Pacific Ocean, from Iwo Jima in the north to Yap Island in the southwest.

Modern human scientists believe that the Mariana Trench is estimated to have been formed 60 million years ago and is part of a series of trenches on the ocean floor of the western Pacific Ocean, with a total length of 2,550 kilometers, an arc shape, and an average width of 70 kilometers.

Most of its water area is more than 8,000 meters deep. The maximum water depth is in the Fichaz Abyss, at 11,034 meters, which is the deepest point known to the Earth's surface.

If you don't have any idea of this depth, we can actually make a simple comparison.

If you put the world's highest Mount Everest at the bottom of the ditch, the peak is still more than 2,000 meters above the sea.

Many mountaineers have successfully conquered Mount Everest, but it is extremely difficult to explore the mysteries of the deep sea.

Since the discovery of the Mariana Trench, research on it has not been interrupted.

Scientists calculated the water pressure at the bottom of the trench and found that it was as high as 1,100 atmospheres.

Such water pressure is completely beyond the imagination of ordinary people, and of course it is a huge challenge for humans.

As a result, scientists once thought that the Mariana Trench was a high-pressure, pitch-black and icy world, with a typical temperature of 2°C (in a very small number of seas, the ocean floor can reach as high as 380°C due to geothermal influences).

Since the discovery of the Mariana Trench, humans have been curious about the specific depth of the trench, but unfortunately, when the trench was first discovered, the technical level of human beings was not high, and with the level of technology at that time, it was not possible to measure such a deep sea area.

It was not until 1899 that the depth of the Nailoyuan was first measured at 9,660 meters southeast of Guam. This record has been held for 30 years. In 1929, a depth of 9,814 meters was measured in its vicinity.

After World War II, mankind began to increase the study and measurement of ocean trenches.

The first was that in 1951, the Royal Navy Challenger II again surveyed the trench.

Challenger 2 measured a depth of 10,900 meters at 11 degrees 19 minutes north latitude and 142 degrees 15 minutes east longitude in an echo positioning mode.

In this way, the probe passes through the gradient depth, sends sound waves repeatedly, and then captures the echo with a headset, and the rate of the echo is timed with a handheld computer.

Therefore, when the new maximum distance was formally reported, it was prudent to subtract the measured depth by one scale, resulting in a figure of 10,863 metres.

In 1957, a marine research vessel of the Institute of Oceanography of the USSR Academy of Sciences, the Fichaz, carried out a detailed survey of the Mariana Trench and, on 18 August, with an ultrasonic sonde, discovered a particularly deep abyss in its southwestern part.

In 1960, the US Navy submersible USS Trieste set a world record of 10,916 meters in the trench.

In January 1960, scientists successfully descended to the deepest part of the Mariana Trench aboard the deep-sea submersible Trieste for scientific investigation.

Amazingly, during this expedition, the scientists actually saw a flounder and a small red shrimp swimming.

Until then, the scientific community had long believed that life was impossible in the sea below 3,000 meters.

The most accurate record of the trench was measured at a depth of 10,911 metres (35,798 ft) by the Uthen exploration vessel Kaiko on March 24, 1995.

Not only that, but scientists have also discovered a new species of fish at 8,000 meters in the water.

This not only broke the previous record, but also made humans more curious about the deep-sea world.

It is also worth mentioning that in March 2012, James Cameron, a famous Hollywood director in the United States, took the submarine "Deep Sea Challenger" alone and dived nearly 11 kilometers to explore the Mariana Trench in the western Pacific Ocean.

At 7:52 local time on the 26th of Guam, that is, at 5:52 Beijing time, Cameron successfully dived to the bottom of the Challenger Abyss, the deepest part of the world's oceans, and returned to the surface on the morning of the 26th local time.

This is the second time that humans have explored the Mariana Trench, and Cameron was the first person to dive single-handedly into this "deepest part of the earth".

Lu Yuan is naturally very curious about the mysterious Mariana Trench, but he is more interested in the original residence of the sharks.

The Mariana Trench is so large and so deep that it is still very unfamiliar to humans, although they have been studying it for many years.

The vast majority of the trench has not really been set foot by humans.

In addition, the terrain inside the trench is also very complicated, and if there is anything hidden in it, it is really difficult to find it.

Although Lu Yuan's water escape technique has already been completed, under the water pressure beyond human imagination, the speed has also become very slow.

If he wants to get out of the building in the shark's mouth early, he can only look for it slowly.

Fortunately, Lu Yuan had been mentally prepared for this, and he never thought that he would be able to find his goal soon.

If it was really that easy to detect, human detectors would have discovered it a long time ago.

While Lu Yuan was looking for his target in the abyss, he was also constantly observing the deep-sea fish living in it.

Lu Yuan was also very curious about these fish, and he was curious about how these fish could resist the water pressure of up to 1,000 atmospheres.

Through the observation of deep-sea fish, Lu Yuan really discovered some special places.

Curious, Lu Yuan couldn't help but start mimicking the actions of these deep-sea fish.

To Lu Yuan's surprise, his imitation really brought him some benefits.

Lu Yuan found that using the way these fish move can really reduce the pressure of the seawater, and can also increase the speed of movement in the seawater.

Naturally, he was pleasantly surprised by this discovery, and in the next few days, he simply suspended other actions and wholeheartedly groped for the movements of deep-sea fish.

In the end, he actually succeeded in improving the Water Escape Technique, making it more suitable for actions in the deep sea......