Because Chen Han had always kept the submarine in mind and performed maintenance on it every month, he was very skilled when operating the submarine this time.
He first opened the nuclear submarine's fuel tank, and then the engine started running, creating a deafening roar that filled the entire submarine with noise, forcing everyone to shout to communicate.
Then Chen Han turned on the submarine's headlights, and the bright light immediately illuminated all the surrounding waters. Chen Han turned to look at Lu Yuan sitting next to him: "The submarine has been tested and all equipment is working properly. Shall we proceed with the dive?"
Lu Yuan nodded slightly: "Okay, let's dive down, but slowly! We don't know what's down there, so be sure to observe carefully!"
"Okay, I understand!"
Chen Han nodded slightly, then opened the submarine's floodgates. As water slowly entered the submarine's outer compartment, the submarine began to slowly descend.
The building is constructed entirely of high-strength glass, allowing them to clearly see their surroundings through underwater lights.
However, because this body of water has been neglected for a long time, many of the debris in the water has been covered with dense moss, making it difficult to see clearly.
Fortunately, there was a sonar device above the control panel, which allowed them to detect things around the submarine.
Ten meters, twenty meters, thirty meters, the submarine continued to descend. Lu Yuan felt a little shocked because when they descended to a depth of about fifty meters, he could clearly feel the temperature inside the cabin starting to drop.
Just how deep is this body of water?
Chen Han glanced down at the dashboard, then turned on a sonar device. A whooshing sound was heard, followed by a series of detected data transmitted through the sonar's dashboard.
"Based on the probe, the submarine is currently quite far from underwater, about 200 meters away, and the entire water area is approximately 250 meters deep!"
"Over two hundred meters deep? Well, it seems I underestimated this place. I didn't expect it to be this deep! Can a submarine withstand this kind of pressure?"
Lu Yuan clearly didn't have high hopes for this small submarine. After all, it looked like a child's big toy. Although it contained a nuclear reactor, Lu Yuan had a feeling that it wasn't very reliable.
However, Chen Han's face showed a confident look: "Don't worry, I have full confidence in this submarine. When it was designed, the maximum diving depth could reach two thousand meters. Two hundred meters is just a small case for it. It won't even budge the outer skin!"
Seeing the other party's reaction, Lu Yuan could only nod slightly. Then the submarine continued to descend. When it reached the bottom, Chen Han turned the submarine around and turned on the lights underneath.
"There's just too much debris in the water. We need to wait for it to calm down a bit and see if we can find anything. There's just too much sediment right now!"
"Okay, let's wait a bit and see what's around here. Is that water dungeon you mentioned here?"
Chen Han observed for a moment, then shook his head: "I didn't find anything. I guess the water prison should be nearby."
"Okay, then wait a moment. Do you need to leave the warehouse?"
"No need, your lungs would burst if you went more than 200 meters deep!"
Upon hearing Lu Yuan's words, a look of shock flashed across Chen Han's face. He vaguely sensed that Lu Yuan's power was not limited to his own space.
Moreover, from Lu Yuan's question just now, he even felt that Lu Yuan seemed to be able to withstand this kind of pressure.
After waiting for more than ten minutes, the floating dust in the water slowly settled to the lowest point, and Lu Yuan was able to see the outside situation clearly through the glass window. He saw that the bottom of the entire water was very flat, just like a huge swimming pool.
Then Lu Yuan instructed Chen Han to continue sliding the submarine forward. The submarine then began to slowly move forward using its small engine, so as not to stir up more dust.
Lu Yuan asked Chen Han to circle the entire artificial lake first to see if they could find anything. When the submarine had circled about a quarter of the way, a huge obstruction suddenly appeared in front of the sonar.
"Look, there's something up ahead!"
A look of surprise immediately appeared on Chen Han's face. Lu Yuan looked at the dial and sure enough, he saw a large area of red light indicating the status.
About twenty meters ahead, they saw something that looked like a wall. So Lu Yuan said softly, "Let's walk up to it and slowly float upwards to see just how tall this wall is!"
Chen Han nodded immediately, and then the submarine he was operating began to rise slowly, while a warning light kept appearing ahead indicating an obstruction.
Suddenly, when the submarine surfaced to a depth of about 100 meters, the area in front of it suddenly became wide open, and the obstruction displayed on the sonar instrument panel disappeared. However, there was still an obstruction below and in front of it, which was obviously an underwater structure.
"Go check the situation and see if you can find the water prison inside!"
Chen Han turned to look at Lu Yuan: "This place is about 100 meters deep. It would be dangerous to leave the chamber now! People at a depth of about 100 meters would experience symptoms such as pulmonary edema. We should think of a way to drain the water if necessary!"
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