Olidia Island was formed by long-term movements of the earth's crust on the seabed.

And the twin mountains inside the island.

It should be the area with the most frequent sports.

It has evolved over thousands of years.

With the increase in altitude.

Mountains gradually rise from the ground.

And so it goes.

The geological environment here is naturally different from other places.

Thereinto.

The most intuitive performance.

I'm afraid it's the super water storage capacity of the surface rock formations.

Otherwise.

In the middle of the mountain, there is no such spectacular scene.

In terms of geological factors.

In the early days of the island's formation, the Twin Mountains were supposed to be relatively intact mountain ranges.

And the culprit that led to the emergence of this glimmer of heavenly wonder.

It is highly likely to be related to this natural spring.

At first, the fountain was very quiet.

But after thousands of years of evolution, coupled with the movement of the earth's crust, it has been fueled.

The spring water and trees show in the forest.

Fight your way out of the mountain.

Tear such a behemoth apart in half!

In the end, this wonder of the ages was created!

The formation of a ray of heaven, in ancient times when the productive forces were not developed, was considered a mysterious and difficult puzzle.

But in fact.

Not really.

Most of the "silver liners" are the result of the continuous expansion of cracks or joints in the rock.

The original vertical fracture is the product of the internal force of the rock.

But later, with the sun and frost, the wind and rain, and the spring erosion.

This rift will be gradually widened over time.

It forms a long, narrow and upright natural passage.

Of course, there are also some "silver liners" formed by faults.

Faults differ from fractures in that after the rock is cracked, the rock layers on both sides have a displacement of up and down, left and right.

The twin mountains in the island of Olidia belong to the former.

Back then, for the primitive people who had lived here for a long time, they naturally didn't understand these things.

I just think it's amazing.

It's spectacular.

Subsequently, it was exaggerated and preached by the ruling class.

People naturally associate it with gods.

Therefore, it is not surprising that the temple was built in the mountains.

Water is the source of life.

The matter of living by water has existed since ancient times, and primitive people are no exception.

Looking at the mountain spring gushing in front of you.

Lu Yu shared his thoughts with the audience.

In his words, he revealed a sense of awe for this magical land.

From today's point of view, such a spectacle would be incomparably amazing.

Not to mention that era of ignorance.

"Brothers, it's really amazing. ”

"This spring has been gushing for tens of thousands of years. ”

"The vitality of Olidia Island is so tenacious because of it. The only regret is that to this day, it is uninhabited except me......"

After speaking, Lu Yu jumped off the rock.

Walked closer.

Get a closer look at the eye of life that has nourished the island's long years.

Soaring water columns.

It's unstoppable.

Within a radius of several tens of meters.

It was like rain.

Visibility is frighteningly low.

The noisy sound of water almost obscured everything.

The scenery is magnificent.

Who would have thought that in the depths of the wild Pacific Ocean, there would be such a world-class wonder?

Time.

The barrage in the live broadcast room also hit like a spring.

All the audience were shocked by the scene in front of them.

"What a beautiful girl!"

"Take a group photo!"

"Thanks to the streamer!"

"Is it possible to develop into an attraction?"

"With the popularity of Yushen, it is estimated that after this live broadcast, the value of the entire island may rise to astronomical amounts!"

"I want to take a stake!"

"I'll give you a piece!"

……

Linger for a while at the spring.

Lu Yu continued to move forward along the river.

Here it is.

The direction of the flow of water has changed dramatically.

by the initial countercurrent.

It became downstream.

Until the end of the day, it did not disappear completely.

After walking forward for a while.

Unconsciously.

Light in the mountain road.

Suddenly, it dimmed.

Many climbing vines descend from the top of the hill to the ground.

Extremely poor field of vision.

If you are in the jungle, you may get lost if you are not careful.

Lu Yu could only grope his way while stumbling forward.

After a while.

It wasn't until beyond the area that the light came back on.

In the blink of an eye.

More than an hour passed.

The end of the mountain road.

Suddenly, a bright light shot in.

See here.

Lu Yu was overjoyed and said to the camera: "Ahead, it should be the end." ”

"Let's go over and see. ”

"Not surprisingly, on the other side of the mountain, it should be the north shore of the island. ”

The voice landed.

He quickened his pace.

Three steps and two steps.

Trotted all the way through.

Not much.

The road is at its end.

What catches your eye is an unusually cluttered pile of reefs.

Standing horizontally on the shore.

The sound of the waves and the howling of the sea breeze.

And so on.

It's been a long time.

Extremely far away from the line of sight.

The vast ocean is calm and waveless.

Indifferent.

casually found the highest point and stood up, Lu Yu looked around.

Nothing special was found.

However, due to the topography, there is a path that leads to the top of the mountain.

From here, it is almost effortless to reach the summit of the Twin Mountains.

Thereupon.

Lu Yu immediately took action.

Follow this mountain road to the top of the mountain range.

This time.

Because I didn't have any weight on my body.

It's easy to climb.

Within twenty minutes, he was standing on the commanding heights of the entire island.

……

……

……

The Twin Mountains are the absolute commanding heights of the island.

Stand here.

The whole island can come into your sight for as long as you want.

Overlooking the four wilds.

The drone circled aimlessly above Lu Yu's head and filmed the scene.

Before coming to Olitya.

Lu Yu has climbed many mountains.

In terms of steepness, it cannot be compared with the west wall of Huashan.

In terms of altitude, Everest is also far ahead.

But don't know why.

This hill is several hundred meters high, but it gives him a lot of different feelings.

"Friends, this is not the highest mountain I've ever climbed. ”

"But it must be the most meaningful mountain I've ever climbed. ”

"Along the way, stumbling. ”

"It is only today that I have been able to see the whole island clearly, thanks to my own efforts. Although my challenge is not over yet, there is no doubt that it is another kind of conquest and realization. ”

"In this moment, I learned about Euredia, about its history, about its past and present, about this magical island that was once incomparably glorious and now incomparably lonely. ”

Looking at the island where he has survived for more than a month.

Lu Yu had mixed feelings in his heart.

Confusion of thoughts.

I don't know how to express my feelings.

It can only be said.

Not easy.

It's really not easy.

……

Stand at the top of the mountain.

I looked at the scene.

Lu Yu came back to his senses.

If you want to descend the same way as before, you can return to camp and end your trip to the North Shore.

However, there are not two steps yet.

Left side of the body.

A raised rock suddenly caught his attention.

See something unusual.

He immediately poked his head out and looked.

Outcome.

Take a look.

Behind the rocks.

There is still a cave.

I don't know why.

There is a cave that is not big or small, and it leads to the mountain!

Because the light is too dark.

Lying on the ground and looking inward, it is impossible to see the specific situation inside.

You can only see a little bit of light.

Looks.

It should be watery.

Squinting his eyes, Lu Yu looked intently for a while, and then muttered:

"Brothers......"

"There should be a dark river down here. ”

Underground river.

That is, "subterranean flow".

Due to karstification, the water flow in the karst caves and underground passages formed in large limestone areas has the main characteristics of rivers.

The Twin Mountains are consistent with the geographical origin of the Dark River.

The abundant groundwater circulation allows a natural spring to gush day and night.

It's all thanks to this.

Therefore, it is not surprising that there are rivers in the mountains.

Secondly, the tropical climate with high temperature and rain is also conducive to the formation of dark rivers.

In the live broadcast room.

After listening to Lu Yu's words, the audience launched a barrage:

"Dark River?"

"Leap of Faith, Ready!"

"Damn, Feather God isn't going to jump from here, is he?"

"If the anchor dares to jump, I'll brush him ten super fires today!"

"I'll brush twenty!"

"Jump, looking for death?"

glanced at the barrage in the live broadcast room.

Lu Yu smiled.

In the face of the audience's complaints, he waved his hand again and again:

"A few hundred meters away, even if there is water below, jumping down is a death. ”

"Not to mention a few hundred meters, even if you jump into the water from a few tens of meters, the fatality rate is as high as 90 percent. ”

"At this height, there is no difference between the water surface and the ground, the light is blue and the face is swollen, and the worst is to die on the spot, and there is no doubt about death. ”

"In 2016, a train in North America exploded on a more than 10-meter-high cross-continental bridge, when a white passenger in the exploding carriage smashed the window and wanted to jump into the river in order to escape for his life. In the end, although this guy successfully escaped, he was admitted to the ICU for the first time, barely survived, and may spend the rest of his life in a wheelchair. ”

"So, if it's not an emergency, don't do that. Ordinary people who have not undergone professional training can already be so dangerous to jump more than ten meters, let alone a height of several hundred meters, unless you are impatient to live......"

A dark river inside the cave.

There is nothing special about it.

But in the dark.

In addition to the passing river, through observation, Lu Yu also noticed a very imperceptible detail.

The lower left of the line of sight.

That is, the deepest part of the inner wall of the cave.

It was as if something was shining.

However, because of the limited light, I couldn't see anything at all.

"Brothers, there seems to be something down there. ”

After adjusting the lens of the drone, Lu Yu focused his perspective on the cave, trying to show the audience his new discovery.

However.

It's just too far away.

Even if the lens is extended, the audience is confused.

Seeing this, Lu Yu immediately turned on the night vision function of the drone.

Controlling it with his mind, he let it fly slowly into the cave and surveyed it.

The inner wall of the cave is very damp and contains a lot of water droplets.

Densely packed.

If you don't look at it, it's enough.

Just looking at it is enough to give you goosebumps.

Stick to the wall of the cave.

The drone went all the way down.

After a while, they came to the bottom of the cave.

in the picture.

The depth of the dark river is unknown.

But the flow rate is extremely fast.

It also takes up a lot of space.

All the way down, I don't know where it leads.

"The spatial distribution of the river is controlled by lithology, geological structure and drainage datum. ”

"Dark rivers often develop in the axes of stratigraphic folds, fractures and faults, at the contact between soluble rocks and non-soluble rocks, and near drainage datums. ”

"However, the river has its own recharge, runoff and established drainage system. After a long period of geological changes, a highly developed underground river system is usually formed, and underground rivers and subterranean flows are not only important water sources in karst areas, but also exist in some limestone mountains. ”

The development and morphology of dark rivers are often controlled by geological structures and fractures.

The morphological characteristics are very complex and disorganized.

Some are dendritic.

Some are jagged.

Some are linear.

There are also mesh-like.

Regardless, in this vast underground water system, each river has its own recharge and drainage channels.

Multiple disconnected rivers can also develop in the same aquifer.

Therefore, the river you see in front of you is most likely the most insignificant one in the underground water system of Olidia.

Look at the flow rate.

Preliminary estimates.

The entire basin area of the underground river is at least 1,000 km or more.

In other words, it's not just the Twin Mountains.

The whole North Shore, or even somewhere on the West Coast.

There may be similar underground rivers!

Lu Yu explained the kung fu for the audience.

The drone flew quietly along the river.

There was hardly any sound except for the flow of water.

On both sides of the river, the space is very cramped.

At most, it can accommodate one person walking sideways.

In the dark.

The picture of the live broadcast followed up so slowly.

In the blink of an eye, I found the glowing spot.

Sticking out the lens, I looked at it.

Originally.

The glowing point that Lu Yu saw was not something else, but a rotten iron box.

The pattern on the box is extremely retro.

Crawling with rust.

But even so.

You can still see the general appearance and the pattern carved on it.

After observing for a while, Lu Yu was in the black and white night vision lens.

I vaguely saw a very clear balance-shaped mark.

When he fixed his eyes, Lu Yu swallowed his saliva, shook his head and muttered:

"Brothers, do you see that sign?"

The words are not finished.

The drone's lens begins to focus.

The next second.

After a while, the barrage in the live broadcast room poured out like a tide:

"it!"

"Isn't that the sign on the gold coin?"

"Nima!

"Brothers, something is wrong!"

"I'll make ......"

Lu Yu nodded lightly.

Then he said:

"That's right. ”

"This is a sign of a pirate utopia......"

"It seems that this treasure chest left at the bottom of the cave should also have something to do with Avery. ”

"Brothers, if I'm not mistaken, Olidia, this uninhabited island hidden in the depths of the Pacific Ocean, may well be the last hiding place of the Thief of the Century, Avery......"