All kinds of plants and trees on the hillside grow luxuriantly, there are mountain dates, daylily, wild mountain ginseng, mountain thatch, goose grass, etc., the coverage rate is at least more than 80%, and there are all kinds of birds flying around from time to time, chirping and murmuring.

What is even more surprising is that from the crack in the rock, there is a spring water trickling out, forming a small pool about the size of a fist at the foot of the mountain, the water depth is five or six centimeters, and when it is full, it overflows and flows from the stone to the sea. The two rabbits were drinking water, and when they saw the team members, they "swished" and disappeared into the grass.

Lin Tao was overjoyed and was about to catch the rabbit, but was stopped by Yu Songyuan.

The seabed here is full of reefs that are inaccessible to ships. If the wharf is built, it will be a good place for fishing boats to take shelter from the wind in the ocean.

Yu Songyuan divided the personnel into three groups and ordered Liu Guodong to lead the three groups to find a camp and establish a camp. Lin Tao led the second group to conduct a carpet search on the island, thoroughly checking the land, mountains and forests, and grass. Take your own group and conduct a detailed underwater survey of the island.

At this time, the sky is already bright, the north wind is blowing, the temperature is minus four or five degrees, the sea is splashing with flowers, and seagulls are flying. Yu Songyuan, Lin Zhumin, and *** put on wetsuits, put on gas cylinders on their backs, and dived underwater from the south side. The three of them carefully reconnoitred the seabed north of the island in a counterclockwise direction, but found no clues.

When you turn to the south side of the island, the temperature in the sea is minus 12 degrees Celsius, and when you reach the middle of the island, it is about 0 degrees Celsius, which is in stark contrast to the north. The water is clear, the currents are strong, and the underwater visibility is excellent, which is suitable for the growth of seaweed, fish, abalone, sea cucumber and other marine life.

All kinds of fish and shellfish were indifferent to the three intruders, and the flounder stuck to the bottom of the water, occasionally preying on the small fish that passed by, stirring up a cloud of mud, but soon fell into calm again. Between the algae-infested rocks, flocks of red sea bream are colourful and swept around like a cloud. A group of large black fish swims quietly one or two meters below the water. On the rocks at the bottom of the water, shellfish or crustaceans such as abalone, oysters, oysters, sea cucumbers, crabs, etc., come into the eyes of the team members from time to time.

The island is in the shape of a standard crescent, with a long bay deep into the middle of the island, flanked by cliffs, and a huge rock wall at the end of the bay. The water depth in the bay is about thirty or forty meters, and the cliffs on both sides and the underwater part of the stone wall on the opposite side have formed dozens of large and small underwater caves due to the erosion of the sea, becoming a paradise for all kinds of marine creatures.

The trio examined the underwater cave one by one, occasionally engaging in minor clashes with the sea creatures inside the cave. Lin Zhumin was attacked by a moray eel, and his arm went numb to his shoulder, and he finally had to kill the moray eel.

They inspected each of the more than a dozen large caves that people could enter and exit. Only two caves were found to be deeper, about seven or eight meters deep, and there were no other problems. As the pressure of the cylinders decreased, the compressed air was running out, so they exited the cave and marked the entrance. Then, I took everyone to dig up dozens of abalone and oysters and returned to the surface.

At this time, Liu Guodong was already in a cave facing south in the leeward part of the dense forest, and found a "place to settle down" for everyone. "The cave is about two or three meters deep and relatively flat inside. Liu Guodong and others cleaned the bird droppings and rabbit droppings on the ground, and then used dry thatch to lay around the ground. In the middle, stones are used to form a circle, and the dry wood is cut with a wire saw, and firewood is quickly lit. On the wooden shelf above, a lunch box hangs, and water is boiling inside.

Yu Songyuan took a group of three people to change into clean clothes at "home" and barbecued food around the brazier. At this time, Lin Tao came back with two groups of three people in a hurry. Liu Weimin was carrying four rabbits, which had been cleaned up and roasted directly on the shelves.

Liu Guodong, the big housekeeper, said excitedly: "Boss, I have tested the water, and it can be drunk, but the taste is a little worse and a little astringent." At the same time, there is a serious shortage of water, which must be strictly controlled. Besides, if we drink it all, the rabbits and the birds will die of thirst. The instructor chose such a place for survival training, not for us to come on vacation, food, firewood, and salt are inexhaustible, but the water source cannot be solved. ”

Lin Tao also reported: "The top of the mountain is sixty or seventy meters high, densely covered with plants, and the forest is luxuriant. Rabbits and birds are the most common animals on land, and there are about eighty or ninety rabbits. No signs of anyone ever being there. What I don't understand is that there will be so many rabbits in weishenme here? ”

Yu Songyuan also asked Lin Zhumin to report on a group of underwater explorations. After the report, everyone stopped squeaking and fell into thought.

This sea area is located next to the main channel for China's northern submarine forces to enter and exit the ocean, and is the strategic lifeline for our underwater troops, especially the underwater strategic nuclear force, to enter and exit the ocean. It is also the edge of China's continental plate, which belongs to the extension zone of the continental shelf, with an average water depth of more than 70 meters, most of the sea area is 60 to 140 meters deep, and the deepest depth is only 120 to 200 meters.

However, it is in this life-and-death sea area that the seabed is densely covered with a sonar base array composed of anchor sonar buoys, which has become an important node of the underwater strategic surveillance system of country M and the eastern Japanese country. The entry and exit of our submarine forces in and out of this sea area has become almost transparent and closely monitored.

Since the 50s of the 20 th century, country M has successively established an anti-submarine early warning system in the waters of the East Coast-Atlantic Ocean and the West Coast-Pacific Ocean, and has equipped early warning equipment with three lines of defense. The main facility is the SOSUS fixed sonar surveillance system, which operates at a distance of about 100 nautical miles. There is a SURTASS towed array surveillance system, which operates at a distance of hundreds of nautical miles in the deep sea. There is an RDSS automatic tethered sonar buoy system, and a single buoy operates at a distance of 10 nautical miles. Country M is also connected with the anti-submarine early warning system of its allies in an attempt to gradually realize anti-submarine early warning in global waters.

Since the 60s of the 20th century, the Eastern Wa Kingdom has successively deployed dozens of passive coastal sonar arrays in the Soya, Tsugaru, Tsushima and other straits, with a maximum range of 70 nautical miles. In the outer waters of important ports, on the seabed of the main passage for China's submarine forces to enter and exit the ocean, and in major strategic sea areas, anchored wired sonar buoys have been laid out.

Throughout the 50s and 60s, countries M and the eastern Japanese countries secretly laid a large number of sonar buoys along the coast of our country and even in the main coastal waters of our country through airdrops or ship drops. Since the seventies, the vast majority of these buoys have been destroyed through the continuous fishing of our fishing boats.

Especially for this strategic sea area, our fishing boats regularly have to carry out dragnet fishing here, and the survival time of the cable base array is short and the cost is large. Therefore, the Maritime Self-Defense Forces of Country M and the Eastern Wa Country have changed this place into an anchored base array, repaired and laid buoys at any time, and regularly collected and replaced batteries to ensure the integrity and effectiveness of the base array.

In terms of the placement of buoys, country M and the eastern country began to use airplanes and ships to lay them, but as soon as they were laid, they were discovered by our fishing boats and were immediately damaged by fishing. Later, planes and ships used the night to set up buoys in this area, and then left after laying them.

Generally, when the base array receives the submarine radiated noise (passive type) or the echo signal reflected by the target (active type), it is amplified, processed and modulated by the sound frequency to form an ultra-high frequency signal, which is radiated by the antenna to the air for the buoy signal receiving and processing equipment of the aircraft or ship to receive, monitor and analyze. Another way is to transmit the signal to the onshore signal processing system through submarine cables or satellites for analysis and research.

Due to the time constraints of satellite communications, and the fact that this sea area is far away from the mainland of the Eastern Wa Kingdom or from the bases on the main outlying islands, our military intelligence department has long suspected that there must be a secret intelligence analysis base on several small uninhabited islands in the vicinity. However, the strange thing is that our coastal defense troops have repeatedly carried out intensive exploration of the surrounding uninhabited islands, but have not found any clues.

Thinking of this, Yu Songyuan was sure that the 186, as a 'ghost' unit, had put a nine-person special training team on this uninhabited island, indicating that the command had judged that this island was likely to hide unknown secrets. And the task of the special training team is to quietly find it, defeat it, and destroy it completely!

Otherwise, the survival training organized at such a large cost will have no practical meaning at all, and the assessment will also fail. What is even more intolerable is that the task will continue to be completed by other forces. This would be a great shame for the 'ghosts'.

Lin Tao thought for a long time and broke the silence, "There is only one possibility, an underwater cave. Everyone was also thoughtful, and they all nodded frequently for a while.

"It's conceivable that if they built their stronghold inside the mountain, using underwater caves as access routes, even if they built a small city inside, they wouldn't be able to find anything outside." Liu Guodong said.

Liu Weimin said nervously, "If this is the case, they must have observation holes in the mountain, then we must have been exposed." ”

"According to the laws of the submarine base array, the headquarters judged that there was something wrong with this small island. It is not excluded that there is another possibility, there is nothing here. The instructor and the chief of staff just gave us a survival training program with a real combat background. ”

Yu Songyuan synthesized everyone's opinions, he thought for a moment and said, "Let's have lunch first." Let's assume that if there is a hole in the bottom of the reef, and since we have been exposed, there is no need to hide it. After the meal, group fishing, dinner and night meal are prepared first. Dry some more dried fish and prepare for a long battle. ”

"What about the water? Children pee like pee, and one person can't drink. And the rabbits, and the birds also want to drink. We can't afford to drink all the fresh water that animals depend on. ”

"I'll figure it out, there is no rain in winter, only seawater desalination, but the amount of work is too large. However, the amount is still limited, and everyone still needs to save water. Liu Guodong said.

"The issue of water should be handled in accordance with the advice of the Gordon. Fresh water is distilled as much as possible, and a little spring water outside is left for the animals. Now we just imagine that if there is a hole in the bottom of the mountain, the rabbit is likely to be artificially free-ranged. Therefore, it is possible to catch on a large scale. ”

"Even if it's completely wild, the space here is limited, and the number of survivors can only maintain a small balance. When caught, they can multiply in large numbers. ”

"If you want to eat them, you have to catch them openly, and you can't make such a clumsy excuse." In a word, it made everyone laugh.

In the afternoon, the team members took out their own fishing hooks, and Lin Zhumin cut more than a dozen long branches to make fishing rods, and used rabbit meat as bait, and it was only at four o'clock that fifty or sixty big fish were caught. It's really absolutely pristine, mainly flounder, red sea bream, big black fish, and mackerel. The largest eight or nine catties is a big mackerel, which is almost incredible. The black fish are all two or three catties, one flounder is four or five catties, and the two real sea bream are six or seven catties.

Lin Zhumin looked at a bunch of big fish and was worried, "Boss, I can't fish anymore, there are so many, I have to clean it up quickly." ”

Yu Songyuan said, "Collect the rod and start cleaning up the fish." Everyone immediately retracted the rod and caught a few small blackheads.

Everyone took out their knives, and it took half an hour to clean up all the fish, and throw all the internal organs into the seawater, attracting all kinds of fish to compete for food, and a scuffle broke out between the reefs.

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