After Ye Nan arrived at that place, there were no people around at all, and this place was not very deep, according to the measured number, this place was about forty or fifty meters deep.

And this place is only the middle of the island's defense range, the further you go, the deeper it becomes, and there is even a large trench, the depth of this trench is unfathomable.

Ye Nan tidied up a qiē, carried the oxygen cylinder on his back, and went into the water.

What he wants to find is aquatic plants, and the only ones he can control are living things, but the creatures of the ocean, as a monitoring point, are indeed a little inappropriate, and only plants are the most suitable.

Ye Nan sank into the water, and the pressure in the water was also very high, but he was not worried, he quickly found some corals.

Ye Nan nodded, these corals can be used as energy nodes.

As long as these energy nodes are connected to the big tree in the center, they can become part of this protection network.

Ye Nan then looked for other plants, because not all places have corals.

Ye Nan found that there are many kinds of plants here, and he chose a plant as the node of energy, that is, in this one place, there are two nodes.

Ye Nan quickly went ashore, he had been in the water for more than half an hour, his body was cold, and there was not much oxygen.

Ye Nan put on the water, took a deep breath, took off his glasses, got on the speedboat, and tidied up his clothes.

Now that the network of defenses has been established, it's time to look for ways to attack.

Corals and seaweeds, apparently, cannot be used as weapons of attack, they can only be used as a monitoring point in this deep sea.

Ye Nan thought seriously, because he had never encountered such a thing, so he needed to think carefully.

The defense system needs to be perfected, and this problem is easy to solve, but the problem of attack is a little more difficult.

Ye Nan seriously thought about the battle between him and the pirates before. All of them come here in boats, that is, in boats that attack them. is the most important.

This is the most critical point, if the ship is blown up and sunk, the people on the boat will fall into the water for a long time. It's going to die.

In the middle of the ocean, the best way to sink a ship is to use cannons, of course, in this situation, there is no possibility of cannons.

Ye Nan also has a powerful weapon, which is the shark.

However, sharks can't always be around and survive as defensive creatures. In that case, the scope of his life will be at home, and the possibility of death will increase.

This is not desirable.

The only thing that can be here all year round is the creatures in the water, and can they be used as weapons to attack, and this weapon is not as fierce as a cannon, but soft, the kind that hides needles in the cotton.

Ye Nan thought about it, only this method was the most feasible.

If these corals are used as the target of attack. It was just for them to stab their ship.

Ye Nan suddenly had a flash of inspiration, yes, just let them stab the boat, even. It's stranded.

Stranding!

Ye Nan suddenly found a breakthrough point, as long as they could be stranded, it was impossible for them to leave, and it was even more impossible for them to move forward.

That's a good idea.

However, around an island. Create a barrier where all the ships, if they can't find the right direction, run aground.

Ye Nan nodded, this method, for others, can only be thought about, but for Ye Nan, it can be done.

Ye Nan, who has mana, can improve creatures and mobilize a piece of land, and now, he can mobilize the land here.

Ye Nan thought about it again and again, he had to find a topographic map of the island, and then make some plans.

Ye Nan thought about these and returned to the dock.

"Is there a topographic map around the island, I want a detailed topographic map."

Ye Nan asked the port staff.

"Our director has, a few days ago, been doing the measurement work, and now it is basically all measured."

Ye Nan nodded, this matter must have been done by Tian Xinyuran and them, yes, now, it comes in handy.

"He's in that room, I'll go look for him." After Ye Nan finished speaking, the staff took Ye Nan towards their director's office.

Ye Nan knocked on the door and went in, and the director saw that it was Ye Nan and quickly stood up.

"Mr. Ye, what instructions do you have?"

"Show me the topographical map of this place."

"Here's a topographic map I just put together." As he spoke, he gave him an ugly look at the topographic map, which was a copy of the topographic soil that had just been printed, because it was not so large, and the entire map was printed on four sheets of paper, and there were some places where some marks were made, and this was when it was printed, and there was an error.

"I went to some places before and found that there may be a second change in our island, and this topographic map must be inaccurate, so it can only be used as a reference tool for the time being." When Ye Nan came, he thought things through.

Before, he wanted to expand the island, and now, it is just the opportunity, but the mana is a little insufficient.

Ye Nan thought about it, could it be that those things at home have not been resolved. It's impossible, according to common sense, the company should have been collectivized a long time ago, and everyone's land has already been organized.

Ye Nan thought differently, shook his head, didn't think about this question for the time being, and first thought about how to arrange the location of those reefs on the island.

"Change?" The man was clearly a little unconvinced, "Is it really going to change?" ”

Ye Nan nodded heavily.

"This information is very valuable for research, you give me this copy, I will give you a credit, and there will be a certain bonus during the New Year." As Ye Nan spoke, he picked up the four maps and compared them carefully.

"I can still print it, you can take this Mr. Ye."

He was very happy, Ye Nan promised to give him a bonus, which is a good thing, which shows that his own matter has been recognized by him.

Ye Nan nodded, picked up the map, and studied it carefully.

He got into his own speedboat, and on his own, began to study the map here, and the pen in his hand kept drawing, full of scribbles.

Since this island needs a certain amount of attack, defense is the most important thing.

There are at least three paths to this island.

Ye Nan thought about it, one is the largest, the wharf, and this place is straight and straight, without any curves, and the other two, one is leading to the living area, that is, the residential group, and the last one is in a corner of the deep forest.

Ye Nan's design, of course, was not casually conceived, but had his own ideas.

After determining these, Ye Nan rubbed his eyes, and the time of the day basically passed. (To be continued.) )