Chapter 525

Yongle Dragon Cave appeared, and the cruise ship Qingfeng started straight ahead.

Along the way, the Osprey on the sea gave way one after another.

The sea kept beating on the hull, splashing white waves.

The Falcon flies in the air to drive away seabirds.

Ning Fei told him not to hunt birds indiscriminately. The Falcon listened to him very much, but occasionally drove the seagulls to play.

From time to time, the Falcon will catch a few sea fish.

Ning Fei's ship was not short of food.

"From a scientific point of view, the blue hole is caused by the cave sinking to the bottom of the sea during the ice age, just like a huge well."

"The seawater is not circulating, and the oxygen content is very low."

"Of course, there are also legends that there was a dragon living here, or that the monkey king pulled the sea god needle from here."

"I'm going down this time to explore the real mystery of Yongle Dragon Cave."

Ning Fei said so.

Ning Guanzhu is so brave. I'm from North Island, and the local people dare not go there

[coincidentally, I'm also from the North Island. It's said that the place can suck in small fishing boats. It's very evil!]

Why do you think the government sealed the Dragon pit? It's just because it's so weird that we can't find out the reason

Yes, on the one hand, it can protect fishermen, on the other hand, it can also protect natural ecology

It's strange that other countries have blue holes, but several of them are open

Netizens are talking about it.

It's said that Longkeng was the Dragon King Temple in the past. Later, the Dragon King Temple collapsed and no one protected the sea area, so people hid here

The North Island netizen continued.

Yongle Dragon Cave has some mysterious colors.

The government's protection of this place is somewhat puzzling.

Now, Ningfei wants to explore Yongle Dragon Cave, and the relevant departments above are also pleased to agree.

Ning Fei noticed that around Yongle Dragon Cave, there were several coast guard ships, probably because of his exploration, to escort.

Ning Fei said again:

"The blue hole is a miracle of the sea."

"Yongle Dragon Cave is the deepest blue cave in the world, with a depth of more than 300 meters."

"The second blue hole is only 202 meters deep."

"From this we can see how magical Yongle Dragon Cave is."

The cruise ship Qingfeng is getting closer to Yongle Dragon Cave.

Netizens have seen that the sea water in Yongle Dragon Cave is dark blue and deep.

As like as two peas.

From the live camera, a feeling of depression came to my face, making me feel a little out of breath.

Light blue and black blue, two different colors.

The contrast of colors makes Yongle Dragon Cave look like a dark eye.

[it looks scary!]

For a claustrophobic like me, this is a nightmare

"People from the government have explored this place with instruments."

"But no one really went down."

"According to the detection results, there are no organisms under Yongle Dragon Cave, because the sea water is not circulating, and the oxygen content is very low."

"And the most terrible thing is that there is a layer of toxic hydrogen sulfide under the water, which can directly isolate oxygen."

When it was about to enter the sea area of Yongle Longdong, Ningfei stopped the cruise ship Qingfeng.

Yongle Dragon Cave is surrounded by a reef structure. Even when the sea is at its highest, it is only three meters deep.

We can't get on the cruiser breeze.

Therefore, Ningfei can only rely on swimming in the past.

"Next, I'm going to explore the deepest blue hole in the world!"

"Hopefully there will be some new discoveries."

Ningfei put the submarine type B bionic tuna and submarine type C bionic flying fish into the sea.

Then he put on his special diving suit, oxygen tank and propulsion device, and dived into the sea.

In this place, submarines are also very difficult to dive.

Ning Fei was on the sea and began to swim forward.At this time, suddenly two middle-aged men in diving suits came out of the sea.

"Ningguanzhu, we are divers of Sansha Geological Bureau, escort for you!"

"Mr. Ning Guanzhu, this time your exploration activity is also highly valued."

The two said separately.

Ning Fei did not expect that there was such an arrangement.

This is also a security work.

Although not very useful, because in addition to Ning Fei, no one dare to go down.

"Thank you

Ning Fei waved to them to thank them, and then moved on.

The drone was flying high, overlooking the camera from above.

Netizens saw a figure swimming from the light blue sea to the dark blue part.

Ning Fei continued to swim forward. He swam at the top of the abyss.

This scene is particularly spectacular and domineering.

It's amazing.

"I'm going to start diving."

"I don't know if there is a dragon in Yongle Dragon Cave!"

Ning Fei joked, which made the atmosphere of the live room a lot easier.

Everything is possible.

There are millions of lives in the ocean, much more than animals on land.

There are only a few marine creatures that human beings have mastered.

No one has ever really dived into such a blue hole.

Only the detection of the machine, may not be able to get the real answer.

Ning Fei diving down.

As soon as he went down, the whole world was quiet.

Netizens saw from the UAV that Ningfei disappeared on the huge dark blue sea.

While everyone was screaming, the camera in the studio switched to the bionic tuna.

At this moment, the sun is shining in the sky.

According to common sense, within 200 meters of the sea, visibility is very high.

But not in the blue hole of claustrophobia.

At first, the sea water was clear and transparent, because after all, it was the surface water, and it was still one with the sea.

But also can see several common sea fish, and a lost little eel.

The surrounding walls are also covered with colorful corals.

Ning Fei continued to go down. Suddenly, the picture became dark.

Netizens feel that this kind of blackness is not the blackness that the light can't shine down, but because the sea water here is dark blue, stacked together, it seems a lot dark.

What's going on? Who turned off the light

I'll go. How did the sea turn black

[what's going on? Just now, I looked OK, but suddenly I became depressed!]

Netizens keep asking.

Although Ning Fei could not see the barrage, he also explained:

"I've gone through the hydrogen sulfide layer."

"Due to the lack of oxygen in the deep water of Longdong, anaerobic bacteria will breed, and they will release a huge amount of hydrogen sulfide. On the one hand, it will isolate oxygen, on the other hand, it will make the sea black. "

"This is also the most terrible place in the Dragon Cave."

Netizens follow the live camera to see.

Above the hydrogen sulfide layer, there are a lot of sea fish still wandering freely, and colorful corals grow on the walls.

Under the hydrogen sulfide, everything became dark, no living things, no movement, just like a dead sea.

No one would have expected such a huge change in a sea area.

Half hell, half heaven.

At this time, the sound of the system also rang in time.

"Ding! It is detected that the host successfully clocked in Yongle Dragon Cave and won a reward, and the top rare species (divine beast) positioning card

"Ding! The top rare species (divine beast) are detected around, and the mission is to explore the secret of Yongle Dragon Cave. "

The first sound of the system is expected by Ning Fei.

But the second prompt sound, rather than flying expected.

"In this Dragon Cave, are there really divine beasts?"