Chen Rui walks in the jungle.

Chen Rui said, "The road is very difficult to walk, every step is extremely difficult, muddy muddy ground, the ground is very slippery, there are cliffs everywhere, exhausting, at 100% humidity, clothes stick to the body like glue, so that the temperature feels more than 100 degrees, in the dense jungle, it is difficult to advance, in fact, usually the speed of soldiers in the dense jungle may only be one mile to one and a half miles a day,." ”

Chen Rui's fourth day in the Panamanian jungle.

Chen Rui advanced more than 20 kilometers along the Camino Rio trail.

Chen Rui was a little tired, and the humid environment around him and the muddy mud made Chen Rui very uncomfortable.

There are cliffs everywhere, mangrove swamps and wetlands, and rivers and valleys with fast currents, which make it very difficult for Chen Rui to cross, and it takes several times more physical strength than usual.

Chen Rui said, "You can't fight hard with the jungle, you have to take advantage of the situation, everything you need to survive in the jungle is around, drinking water, food and medicine are not lacking, you can use your knowledge to survive in the jungle, and ignorance will make you die, knowledge is the biggest key, in front of me, I found a cinchona tree, the bark of this tree contains an alkaloid, commonly known as cinchona cream, is an antimalarial medicine."

It has saved countless lives throughout history, and the Indians called it the sacred tree, and when the Indians encountered malaria, they would use this bitter bark to heal themselves. Although cinchona trees are mainly produced in Indonesia. But its homeland is Ecuador in the Americas. There are immortals in the jungles of Central and South America as well as in the northern part of South America, and after Columbus discovered the New World, Europeans poured into the Americas in large numbers. The chieftain of Leyva, out of friendship, sent a letter to the missionary Juan Brown. López revealed the medicinal value of the cinchona tree and gave him a piece of cinchona bark as a souvenir. So the secret finally fell into the hands of the Europeans.

Now, I need to bring some of its bark and be prepared, in fact, in the humid rainforest, mosquitoes breed and it is very easy to get malaria, and if you don't have the medicine for malaria, it can save your life. ”

Chen Rui took some bark from the tree. Put it in your backpack and continue along the Camino Trail.

"In front of me is a cliff, this trail here seems to have completely disappeared without a trace, about 500 years ago, the Spaniards used hundreds, hundreds of slaves to build this huge rattan rope bridge, through the canyon and the chasm, the Spanish mules used to carry gold were the vine rope bridges, but today, they are rotten and gone, as I see now, I have to find another way around, adventure is like Pandora's box, you never know what will happen to you."

Chen Rui returned along the same path, and Chen Rui found himself lost, lost in this jungle.

"To survive in the jungle, you have to learn to fit into the jungle, the jungle will give you a good reward, food, water, warm shelter, you will find that surviving in the jungle is not as difficult as imagined, but, if you are lost in the jungle, even if you get the best reward that the jungle gives you, it will not help you, the jungle will trap you here, there is nowhere to escape, now, it is difficult for me to discern the direction, it is like an endless labyrinth, the crooked path stretches in all directions, which way is the right direction is like buying a lottery ticketThe good thing is that I can use the river to guide the way, and I just need to walk in the opposite direction of the river, and I may finally find the right direction. ”

Chen Rui followed the stream next to him in the opposite direction and went upstream.

"Suppose there is a rainstorm more than ten kilometers upstream of the river, and it will soon flood here, it looks like the river is very shallow, it may not be as deep as your ankles, you are not aware of the danger, and the flood from the upstream will rush in front of you in an instant, so fast that you have no time to react, and wash you away, many inexperienced hikers have learned a lesson, at the cost of life,."

On the seventh day of Chen Rui's entry into the Panamanian jungle.

"Now in front of me is a mangrove swamp, a tropical and subtropical coastal swamp formed by a community of mangroves. "Nobody likes mangroves," Steinbeck said. "I'm no exception, the mangrove swamp in front of me looks very quiet, the water surface is very calm, but under the calm there is a deadly danger, this is a paradise for forest snakes, pit vipers, alligators, in this swamp, there are thousands of alligators, the bite force of alligators is 990 kilograms, close to a ton, and compared to the bite force of humans is only 40 kilograms,,, if you encounter them on their territory, humans have no advantage, these guys will hide under the murky water, only show their eyes, Observing the nearby prey, now I need to cross this mangrove swamp to reach the opposite bank, if I had a choice, I would not choose to cross this mangrove swamp more than 300 meters wide, it is simply a joke with my life, but, I did not choose, so, I only choose to take risks. ”

Chen Rui walked into the mangrove swamp, and the water was up to his thighs.

The water is very turbid.

The water is less than half a meter deep, and the bottom is still not visible.

Trees that grow in mangrove swamps have evolved a special root system, aerial roots that look tangled like spider legs.

Chen Rui walks in a mangrove swamp.

It was very laborious to walk, and he stepped on it and stepped into the mud, and the mud was like an arm stretched out from underwater, pulling Chen Rui's calf and making it very difficult for Chen Rui to break free from the mud.

The smell of decay was in the air.

Chen Rui said, "This smell is definitely not good, just like the stinky drain in the sewer." ”

It was very quiet around Chen Rui, as if the air around him had frozen, and it was a little abnormally quiet.

"I'm sure one or more crocodiles in my neighborhood heard my movements, because this mangrove swamp is home to a very large number of alligators, one for every few hundred square meters." (To be continued......)