Bifang led Harley along the river, trying to find a shoal or land to cross, but they walked for more than half an hour and couldn't find a suitable place to cross the river.
After walking for a long time, Harley felt a little tired and lay down on the ground, refusing to take another step.
Bi Fang saw this and had no idea what to do.
Facing this big river full of crocodiles, we can only find another way to cross it.
"Click."
A tree trunk as thick as an arm was broken off, and if the length was suitable, Bi Fang tied it with other trees in a row using tree ropes.
Judging from the shape of the wood arrangement, it is obviously a simple raft.
"We can't find a suitable place to cross the river directly. If we want to continue going north, we can only build a raft to cross the river."
If it had been any other river, Bifang would have chosen to swim across it with Harley.
But this is Africa, and the rivers are full of ferocious Nile crocodiles.
"In many wildlife documentaries, we often see Nile crocodiles lurking in rivers hunting for prey, but in fact they only have a handful of opportunities to eat animals a year."
"For the vast majority of Nile crocodiles, they only have two large meals a year, and both times are related to the Great Migration of animals from East Africa."
"The animals eat once when they go and eat again when they come back. Those are the only two meals most Nile crocodiles have."
【No, just two meals?】
[It’s so outrageous. If you eat twice a year, won’t you starve to death? 】
[I was so scared that I quickly took two bites of rice]
"They will not starve to death. Nile crocodiles are extremely resistant to hunger. They can prey on a zebra and then go without eating for more than half a year after a full meal."
"There is little rain during the dry season in Africa. In order to avoid this unfavorable living condition, Nile crocodiles often use their mouths and feet to dig caves on the river banks and hide underground in a hibernating state until the next rainy season.
"
"Sometimes they can dig 12 meters underground, which is the deepest known animal that can dig with bare hands."
"So I would never dare to swim down the river. Before the great migration of animals arrives in large scale, every one of them is hungry and will not let go of any large living animal."
[Nile Crocodile: Brothers, come to life]
[Plop, clatter, crocodile: What’s going on? 】
"You must know that Nile crocodiles attack humans 275 to 745 times a year, more than 63% of which are fatal. The average size of Nile crocodiles responsible for non-fatal attacks is about 3 meters, and the Nile crocodiles responsible for fatal attacks are
With an average size of 3.5 meters, they are considered the deadliest large wild animal in Africa."
"In comparison, from 1990 to 2006, lions were estimated to be one-eighth as many fatal attacks on humans in Africa as Nile crocodiles."
【Death Spin!】
[If you are bitten by a crocodile, you won’t be dismembered directly]
【This is too scary】
【horrible】
Bi Fang bit the end of the rope, stretched the rope straight, inserted his fingers between them, and tied the wood tightly.
There are many dead trees on the grassland, which are good materials for building rafts.
"To make a raft, you can use bamboo or small trees uprooted. Such materials are strong and will not rot, or you can use dead tree trunks. They have high buoyancy and require less materials for the same buoyancy."
"It would be better if there are oil drums or objects that can float around. They can be used to support the raft."
"If you can't find wood, a piece of waterproof canvas or other waterproof materials can also be used to make a light boat for people."
The sun was a little bright at noon, and sweat began to appear on Bifang's forehead after working non-stop.
Sweat beads slid down the temples and fell along the jawbone. Some turbid sweat beads dripped on the white dead wood, leaching out a small patch of dark color.
A large number of trees of uniform thickness are arranged side by side, and are tied tightly one by one with bark ropes as thick as a little finger.
Now Bi Fang is becoming more and more proficient in making ropes from fibers. He can make a one-meter-long bark rope in one minute, as thick as his little finger, and strong enough, which greatly speeds up the completion of the entire raft.
"The water system of the river in front of us is quite complicated. From the geographical and location point of view, I guess it should be the Tana River system, or one of its branch rivers."
While making rafts, Bifang can also do two things at once, introducing information about the river in front of the audience to the audience.
The river in front of us is more than fifty meters wide. The water flow is not fast. If you don't pay attention, you may even think it has stopped flowing. There are a few pieces of land scattered in the middle of the river, covered with reeds and grasses as tall as a person.
Viewed from a high altitude by a drone, it looks like a complete swamp.
That width, plus an unknown length.
A river of this size can never be a nameless "river".
As a professional survivalist, you should know all the famous rivers in the world, and as the world's number one survival expert, Bi Fang is even more so.
"There are many big rivers in Africa, but in Kenya, there are eight rivers that can reach the scale in front of us. But if we reduce it based on the current position, there are only two, namely the Tana River and the Galana River.
river."
"The source of these two rivers is in the Great Rift Valley of East Africa, rushing down all the way, and finally flowing into the Indian Ocean."
"The source is the same and the destination is the same, so it is difficult to distinguish the two rivers if you cannot grasp their specific locations."
"But we are now in the east of Kenya, south of the Nyika Plateau. At this location, due to the height difference, the river speed is very turbulent. This is the case with the Galana River. Originally, the Tana River should also be like this, but its volume is higher.
The flow was greater, so Kenya built a dam over it to generate electricity."
"Although it is the rainy season now, it is far from the time for the dam to release water. With the buffer of the dam, the flow of the Tana River appears to be much gentler, and the water quality is relatively clear. Therefore, we can distinguish from these two points and determine
In front of us is the Tana River."
The impact of dams on river flow speed is very complex, but Bi Fang just kept it simple.
However, one thing is clear, that is, energy does not appear out of thin air. Hydropower stations use the potential energy of water flow to generate electricity, and the flow rate naturally slows down.
[I don’t know what to say, it’s outrageous, but since it’s Fang Shen, let’s act normally]
【Perform stably, keep it up】
【Call Fang Shen】
[A wave of analysis is as fierce as a tiger, and the audience is 250 at a glance]
[I understand, but I don’t fully understand]
[Go alone to a 6]
It took about two hours to build a raft about three meters long and two meters wide.
“When riding a raft, all equipment must be securely tied to the raft or tied to a safety rope.”
"Make sure there's nothing dragging along the edges of the raft, or it could pull the raft apart in the shallows."
"At the same time, we need to tie a few free ropes on the raft. When we are in the river, we need to tie the ropes to ourselves to fix ourselves and act as safety ropes."
"The safety rope should be long enough to allow everyone to move freely, but not too long to avoid dragging it in the water."
"When crossing fast currents and dangerous shoals with large drops, it is best to untie the safety rope. This way, if the raft loses control, everyone can swim to the river bank."
After tying the rope around his waist, Bi Fang found a safe spot and slowly pushed the raft into the river.