After swimming on the surface of the lake, Ao Muyang took the deer to dive slowly.

Soon, Lu Zhizi's brows furrowed.

Ao Muyang knows what is going on, the water pressure increases when diving, and the balance between the inside and outside of the ear cannot be maintained, and the gradually increasing air pressure will slowly push the eardrum into the ear, bringing discomfort.

If it is forcibly descended, it may cause serious consequences such as the bursting of the eardrum, there is a people in the South Seas called the Bajau people, they have been floating on the sea all their lives, in order to overcome this problem, everyone is born with a puncture eardrum!

Ao Muyang observed Lu Zhizi's expression, and after seeing her frowning together, he brought her to the surface again, and said, "Ears are uncomfortable, I'll teach you two methods, the first one is called the Washi technique, you pinch your nose and try to blow out slowly......"

Lu Zhizi took a dozen breaths, nodded and smiled: "It's much better." ”

Ao Muyang also nodded: "Okay, then teach you Toynbi technique, you plug your nostrils with your fingers and then swallow the action, so that you can open the throat, tongue movement will send air into the trachea, maintain the balance of internal and external pressure, and when you are uncomfortable when you dive, use these two methods to adjust the pressure of the ear canal and respiratory tract." ”

Lu Zhizi looked at him with admiration and said, "You can be a diving instructor, how do you know so much?"

Ao Muyang shook his head lightly: "Is this too much?"

This is really not much, he has Baidu a lot of things in the past two days, but he doesn't have the ability to remember, and he remembers these things now......

Lu Zhizi gave a look of adoration at the right time: "Of course, you know a lot." ”

Ao Muyang raised his head and said: "It's not that I'm modest, this is really a basic method, did you kill pigs as a diving instructor before? ”

Lu Zhizi said: "I don't have a diving instructor." ”

Ao Muyang wondered: "Didn't you say that you learned to dive in Miami?"

Lu Zhizi: "Self-taught." ”

Ao Muyang gave a thumbs up, domineering! Niu Pen! You are amazing! Three consecutive hits!

This time I dived again, and everything went a lot smoother.

With many ups and downs, Lu Zhizi learned very quickly, and with the help of the submersible, she was soon able to go deeper than ten or twenty meters underwater.

At this depth, the sun is still bright, and the summer sunlight is so strong that it can easily penetrate forty or fifty meters, and of course, you can't expect the same brightness underwater as it does on land.

The aquatic plants at the bottom of the lake are swaying, some freshwater fish are in and out, you can see the snow-white sand when you open the aquatic plants, and there are large and small stones scattered in some places.

Ao Muyang floated to the surface of the water to ventilate after a while, and he couldn't let Lu Zhizi notice the abnormality.

In this way, Lu Zhizi vigorously looked for a water snail for him and asked him to take it on the boat.

There are fish and shrimp in the lake, but they can't be caught by hand, so water snails and river mussels have become the target of Lu Zhizi.

After collecting some water snails and mussels, Lu Zhizi was not so interested, and his interest in diving was no longer so high.

Ao Muyang smiled, took her hand and swam her for a while, and then continued to dive.

Further down, the water was deeper and the light was worse, Lu Zhizi wanted to turn on the headlamp, but Ao Muyang stopped her and shook his head at her to signal her not to do it.

After he had changed his breath a few times, a trance-like pillar appeared in front of them.

At this time, Ao Muyang swam above Lu Zhizi and helped her turn on the headlamp, and in an instant, the halogen lamp shot out a wide yellow giant sword, and within the range of the giant sword, there were giant trees!

Yes, trees have appeared at the bottom of the lake, and this trance-like pillar is actually a forest......

I saw tall and short trees rooted at the bottom of the lake, their bark was dark brown, and their branches were short and sparse, but they exuded a patch of green on the top, and the trunks were also green in some places, as if they were growing underwater.

Some carp, crucian carp schools shuttle in it, from time to time you can also see the figure of silver carp and silver carp, Ao Muyang sank into the water and stirred the bottom of the lake, suddenly, a big-headed catfish drilled out......

Lu Zhizi's face was full of amazement, she knew how knowledgeable she was, and knew that some trees could survive in water, such as metasequoia and red willow.

But these trees are just rooted in the water, and like this forest, they are all underwater, and they are in such a deep lake, which is a miracle!

Ao Muyang asked her to watch the woods by herself, he floated up and changed his breath, but he didn't really surface, there will be light guidance, and he can monitor Lu Zhizi's line of sight.

The headlamp is fixed on Lu Zhizi's forehead, and when she turns her head or raises her head, the light will change the angle and position.

Looking down from above, Ao Muyang saw a school of noodle fish, these fish have a slender and narrow body like chopsticks, almost transparent, and are a great freshwater fish.

In addition, there are also types of marine fish for noodle fish, but the taste and nutritional content are not as good as those of freshwater fish.

Ao Muyang regretted that he didn't bring a fishing net, otherwise he could have fished it up for dinner.

Lu Zhizi also noticed the noodle fish, she slowly reached over, the fish thought she was also a lake bottom tree, and did not be afraid, but slowly passed by her.

This scene is very beautiful, Ao Muyang regrets it again, it would be good for him to have an underwater camera, it must be good to take such a photo.

Lu Zhizi was full of joy when he looked at the small fish passing by, but suddenly, the small fish became flustered and disappeared in a hurry.

She was wondering when a dark figure fell overhead, grabbed her from behind and moved several meters across the water, and a hand groped around her waist.

Lu Zhizi was shocked, she quickly turned her head and saw that it was Ao Muyang holding her behind.

This made her heart sink, what was he going to do?

Ao Muyang hugged her and moved sideways while reaching out to wipe her waist, then pushed her away and raised her arm reflexively, the yellow light shone on it, shining on the cold light of the fast knife in his hand!

In addition to the knife, the light also shone on a fish, and the deer looked at it with a purple gaze, and the fish was very large, one and a half meters long, like a torpedo with a cylindrical shape.

Its body is long, its head is pointed, its mouth is long and large, its scales are small, its fins are small, and its whole body is silvery-white, with only a grayish-brown tinge on its back.

It was the first time Lu Zhizi had seen this kind of big fish with his own eyes, and he could grow such a big fish in fresh water!

The big fish is very fast, its attitude is very arrogant, it shuttles quickly after it appears, and it is not afraid of Ao Muyang and Lu Zhizi at all, and it actually swims around the two.

Very close, Lu Zhizi saw the sharp and sharp teeth in the open mouth of this fish, like shark teeth!

Taking advantage of the moment when the big fish swam by, Ao Muyang's arm waved suddenly, and the diving knife slashed through, cutting a wound on the big fish.

Suddenly, the blood of the fish flowed out!

The big fish is not as ferocious as the shark, and when it is injured, it wagged its tail and disappeared quickly.

Seeing this, Ao Muyang took Lu Zhizi's hand and led her to slowly float, completed the dive in three stages, and returned to the surface.