Walking through the unfamiliar city, the line of sight was wide, and a piece of blue faintly appeared in front of me.

As the bay approached, the bus convoy turned south and pulled into an RV camp, where it quickly stopped.

The camp is cleverly sited, with large orchards to the south, hazy silhouettes of the city to the northwest, and stretching bays to the east. Staying here, you can enjoy the scenery safely, without worrying about the network signal, and there are fresh fruits to enjoy, which can be very comfortable.

The door of one of the cars opened, and Atletico jumped out first, followed by a group of adults and children, adults carrying beach bags and small swimming goggles, as if they were about to go to the sea.

Seeing Atletico turn around, everyone cast questioning eyes: "What next?"

"Don't worry," the former shook his body, "After running for more than 200 kilometers, everyone should be tired, it is better to go to the restaurant with me to eat something and rest first, and then go into the water." ”

The guest was as he pleased, and everyone naturally had no opinion, and followed him towards the six-story cylindrical building not far away.

The exterior of the building is quite distinctive, the color of each floor is different, and the flowers and greenery look like colorful plastic buckets stacked together, which is interesting and harmonious with the background of the beach and bay.

Along the way, Atletico pointed left and right, boasting about the surrounding facilities and scenery, only to be met with collective ignorance.

Without him, the investor in this Butterfly Island Bay camp is the camp operating company under the Heron Island RV Association, and the majority shareholder behind the company is Atletico Madrid itself. No matter how complete the facilities here are, no matter how wonderful the scenery is, it is annoying to boast about it, isn't it?

Of course, you have to admit that the facilities here are indeed very complete, even a little overdone. In addition to the parking lot with water supply, electricity, and Internet access that the RV camp should have, as well as the supporting laundry room, bathroom, kitchen, supermarket, toilet, there is also a tent camp near the beach where you can rent tents and watch the stars, and there are various leisure and entertainment facilities in the bucket building, as well as a large number of rooms at all levels, in fact, it is more like a seaside theme resort hotel.

After arranging the rooms for everyone, and taking everyone to the fruit bar to eat, drink and rest, Atletico Madrid got up again and led everyone to the rooftop pool.

Standing on the edge of the pool, looking down at the entire circular pool, there is a sense of ants seeing a bucket full of water.

Resisting the urge to laugh, Liu Haiyang quipped: "The more I look at it, the more it looks like a bucket, whose design is too straightforward." ”

"Voted on the Internet," Atletico shrugged his shoulders and spread his hands, "What, the audition held by yourself must be covered with tears." ”

As soon as these words came out, the adults laughed one after another, only Tang Jiayi glared at someone, complaining that he didn't care about his identity.

"But get up," Lao Liu turned around and leaned against the railing, "The scenery here is still quite good, if you are more daring, you can directly make that kind of infinity pool, the effect should be better." ”

In recent years, not only have mobile phones and TVs been bezel-less, but even swimming pools have become popular with bezel-less designs. By visually weakening the perimeter wall, reducing the thickness of the pool wall, and allowing the pool water to overflow the edge, it creates a similar effect of suspension, making the spectacular sea, mountain, and city scenery "within reach" of the outside, thus greatly enhancing the visual appearance of the pool.

In addition to the unique design, infinity pools are often fitted with a directional laminar flow system, which flows horizontally and steadily, creating a treadmill-like "swim without head" effect, which can not only increase the feeling of the pool area, but also improve safety, which can be described as killing two birds with one stone. The only trouble is that the pool has to be rectangular in order for the water to flow smoothly, and at the moment this round pool is not easy to copy. Even if it is forced, it looks like the bottom of the barrel is leaking.

Atletico rolled his eyes, "I'm not stupid, of course I know that the infinity pool is very good and powerful, but the problem is that there are no conditions! ”

was laughing here, Liu Shumeng came over to Atletico Madrid, "What, isn't it good to invite us to dive to see corals, don't tell you that there are corals in the pool." ”

With a mysterious smile, Atletico assured: "Don't worry, I will definitely let you see the corals in the sea." ”

Noticing his strange smile, Liu Shumeng immediately confirmed: "It has to be alive! Dead coral doesn't count." ”

"No problem, guarantee your satisfaction. ”

"It's a strange thing to be satisfied!" Liu Haiyang interjected: "Who doesn't know that diving in the sea requires someone to accompany you for training, so how many diving instructors have you prepared for us?"

Atletico gave a thumbs up and poked themselves, "The coach is here." ”

"Hey, what if you're a good swimmer? There are so many people, can you manage it?"

"Of course you can," Atletico smiled, "I didn't really want to take you to the sea." ”

"Huh?" everyone looked over when they heard this, and their faces were full of questions.

Atletico Madrid ignored this stubble, raised his hand and snapped his fingers, "Cuihua, salted fish!"

As the words fell, several staff members rushed forward, each holding a plastic sorting box. After receiving a nod from Atletico, someone opened the box, grabbed a handful of small fish and threw them into the pool.

The little fish came alive when it got into the water, and soon wagged its tail and swam around, targeting children who were playing in the shallow water.

After the small fish, some large fish with large palms and even arms are thrown into the pool, which are also alive in the water, shaking and swimming away.

Leaning over to the fish basket and taking a look, Liu Haiyang quickly noticed something strange, lifted a fish and shook it, and said disdainfully: "Isn't it just an electronic fish, but it's done more meticulously, and the movements are more realistic, as for making it so mysterious?"

The structure of this toy is not complicated, and inside the plastic fish body is a motor, battery and sensors. When the sensor detects the water pressure, it activates the motor to drive the tail to swing from side to side, causing it to swim like a fish, and if the power output is adjusted, it can also simulate the effect of swimming on its own. When it first came out, the electronic fish was hot for a while, but because of its simple structure, it was copied by a large number of people, and the latter simplified the process and reduced the simulation degree in order to reduce the cost, but the result was that the market was rotten, and no one could sell it.

Hearing his words, Atletico also walked over and grabbed a fish, saying: "This is just the beginning, the good show is still to come." In addition, our electronic fish does not only have the advantage of exquisite appearance and simulation. ”

As if to annotate his words, a fish suddenly leaped out of the water, making a loud noise.

Retracting his gaze, Lao Liu nodded, "Well, it's a lot bigger, what else?"

"The rest, you'll have to experience it for yourselves," Atletico raised his hand to the VR glasses handed by the staff, "take this, go down into the water, and you'll understand." ”

What he has in his hand is the newly developed diving version of the VR headset, Dreamwalker PD7D. In addition to the necessary waterproof gasket for launching the water, the biggest highlight of this product is the underwater acousto-optic communication system.

The water body absorbs electromagnetic waves, especially high-frequency electromagnetic waves, and the commonly used license-free ISM frequency bands: 2.4GHz, 5GHz and even 60GHz will be strongly affected and almost unusable, while the ultrasonic waves that are not easy to absorb have the inherent shortcomings of insufficient carrier bandwidth and high latency, and can only be used in medium and long-distance navigation, remote control and communication. In contrast, although underwater optical communication has the disadvantages of short transmission distance and high bit error rate, it can provide good transmission bandwidth and is the only choice for underwater wireless video transmission.

With the assistance of the staff, Liu Haiyang put on a special snorkeling life jacket and trumpet fins, and carefully strangled PD7D on his face, then he grabbed the snorkel and carefully entered the water, and floated towards the pool by the buoyancy of the life jacket.

It didn't take long for him to surface, with a look of surprise on his face, looking in the direction of Atletico and shouting, "Oh!

The others were equally amazed and asked aloud. However, Lao Liu's ears could not hear clearly when his ears entered the water, so he directly ignored their shouts, and got into the water again, swimming quite comfortably.

Everyone turned to look at Atletico, "You have discussed?"

The latter shook his head, put on a gesture of love or disbelief, and walked straight to the staff who were in charge of the life jackets, and it looked like he was about to get into the water.

At this moment, the masses couldn't stand still, and rushed to the staff one after another, for fear that they would suffer a loss after the end.

Dive headlong into the water, and the image in front of Atletico's eyes immediately changes from the pool to the shallow bottom.

The sun shines overhead, casting bright lines on the corals and anemones, illuminating the lobsters and pike crabs lying on the bottom of the water, the flattened sea bream in front of you, and the grouper with stripes walking leisurely and alone, which is a coral reef squire.

While others were naturally surprised to see such a scene, Atletico swung their bodies and swam in the pool with great skill. As he swam, the picture in front of him also changed, and from time to time there were small fish and big fish rubbing against his arms and legs, and if it were not for the translucent figures breaking into the field of vision from time to time, it was easy to give people the illusion of visiting the coral reef in the middle of the sea.

Naturally, the figures are other people who have been launched into the water one after another, and the VR glasses filter out their figures from the light transmission signal and display them in front of the user's eyes in this form to avoid underwater traffic accidents. Fortunately, although this pool is very shallow, taller people can stretch their legs to reach the bottom of the pool, but the area is really not small, as long as you avoid the crowded shore, you can enjoy the underwater time alone.

After swimming for a while, the novelty gradually subsided, and the physical strength could not keep up, so everyone reluctantly swam back to the shore, unloaded the equipment with the help of the staff, and threw themselves on the recliner to gasp for breath.

Putting down the juice cup in his hand, Liu Haiyang turned his head and shouted at Atletico Madrid: "Atletico Madrid, is it okay now? When is CG technology so advanced, I can't feel a sense of disobedience at all!"

The latter was slumped in the chaise longue to relax, his loving gaze circling around the little ones in the shallow water. Hearing this, he turned his head slightly and said, "It's not CG, those fish are real." ”

"Really?" everyone looked at each other with curiosity.

"Well," Atletico nodded affirmatively, "otherwise why do you think I'm pulling you to Butterfly Island?

"Ah, I remembered!" Li Jiaming suddenly said, "The provincial coral reserve on Butterfly Island has been in the news because it has made way for petrochemical projects. Since it is a protected area, there are naturally corals. ”

"Indeed," Atletico nodded in agreement, "this is the northernmost part of the western Pacific stony coral, and if you want to find stony corals outside of here, you have to look for them on Hong Kong Island and Sanya." ”

Butterfly Island is a coastal island located on the Tropic of Capricorn, about the size of Heron Island, but with a strange butterfly-like shape, several wide bays and dozens of affiliated islands. These bays and islets are influenced by a variety of streams, such as the coastal current, the Pacific Kuroshio Current and the South China Sea Current, and the water is rich in fish, shrimp and seaweed, and the water temperature exceeds 14 degrees Celsius in winter, which can ensure that the polyps can survive the winter and gradually expand their populations.

"Stony coral, the kind of coral that grinds beads and makes crafts?"

"Yes and no, the ones used to make handicrafts are also stony corals, but they are non-reef-building species that live in the deep sea, but what we see are shallow reef-building species. Of course, there are also businessmen who dig up near-shore coral reefs, take them back to polish and beautify, and make handicrafts to sell for money, it is best not to buy them, after all, coral growth is not easy. ”

"It's you!" several ladies complained about Atletico. If they want to protect sharks and crocodiles, they may hesitate, but if they want to protect dolphins and corals, women always have no second words, and Yan Dang's likes and dislikes are so direct and unpretentious.

"It's a pity, the corals here are a bit ugly, either like a hornet's nest or like mushrooms, and the fish in it are not as beautiful as the Maldives. ”

"No way," Atletico shrugged, "the color of the coral comes from the symbiotic seaweed, those little things have high requirements for water quality, salinity, light, and temperature, and after all, this is only a marginal area, and it is very close to the land, and the conditions in all aspects are not as good as a real tropical island, and it is not surprising that there are no beautiful corals." Let's take a look at it alive first, and when we get the business points in Sanya, Fiji and the Great Barrier Reef, we can see more and more beautiful corals. By the way, if you have any technical suggestions, you can mention them now, and go back and put the name on the thank you list!"

"What do you want to do then?" Liu Haiyang pouted, "How did you do it yet!"

"Didn't I?" Atletico asked, gesturing to the pool, "I thought you guys had already thought of it." ”

In the direction of his finger, the electronic fish that had just been released formed several schools of fish, swimming slowly and leisurely, making the appearance of swimming bait. If you replace the underwater pool tiles with coral reefs, you will find that these fish behave exactly like the reef fish around them, and there is no sense of disobedience.

"We have worked with the Butterfly Island government, mobile companies, and the Coral Reserve to set up a number of electronic fish bases in the core area of the reserve, allowing them to blend in with the surrounding fish schools and act as undercover spies. They are equipped with high-definition cameras and positioning and navigation communication systems, which can monitor the movement of underwater fish, record video footage by the way, and turn on live broadcasts if necessary, as you can see. ”

"Isn't that what you do?" someone muttered.

"It's different," Atletico shook their heads, "it's a bit of a hassle, but it's also a lot of benefits. It not only avoids the safety hazards of wild diving, but also reduces the interference of diving activities to the coral reef community, and can also expand the influence through live broadcast and video programs, which is still a big benefit!"

"So capable, why can't you still prevent espionage?"