Wasteland Survivalist: A Scientific Guide to Post-Apocalyptic Survival

After some thought, Gu Lang decided to abandon his plan to use individual communicators to contact the army.

Not to mention the trust issues arising from the rampant virus.

Last night's battle alone has created an irreconcilable blood feud between the two sides, which cannot be explained away by a simple "misunderstanding".

Although they claimed that they were only acting in self-defense to save their own lives.

However, the other side was also faithfully carrying out the blockade mission, preventing the freaks from spreading into the safe zone.

The tragedies of our time do not have "villains" in a clear sense.

There is no "concrete evil" that can be defeated; there is only a sense of nihilism stemming from the inability to change reality.

After finishing the work of transferring the supplies, it was already dawn.

Just as Gu Lang was checking the drone footage and looking for nearby sea caves where he could hide, a piercing sound came through the earpiece of his individual communicator again.

"A diffuse oil slick was discovered on the ocean surface east of Changtu Mountain, suggesting that the target fled towards Dongji Island."

"Received, the interception drone has been launched!"

Upon hearing this conversation, Gu Lang immediately abandoned any further thought.

They took off their clothes, climbed onto the yacht, and kicked a bucket of diesel fuel onto the beach.

The engine was then started and the vehicle reversed at full speed to get out of the stranded state.

After turning around and setting the course to southeast, I put on a life jacket, jumped into the water, and swam back to the beach.

"My dear sister, thank you for being there for me all this time. Goodbye."

Gu Lang stood on the beach, silently watching the yacht sail away into the open sea.

Half an hour later, the small white dot slowly disappeared on the horizon.

As two flashes of light pierced the sky, a plume of black smoke abruptly rose from the sea.

"Report the results of the target damage."

"The ship has been confirmed sunk. Over."

"Received, security alert lifted. All operational units return to port and stand by. Patrol units continue their maritime surveillance duties."

"Let me reiterate the rules: always maintain encrypted communication, and the use of public radio frequencies is strictly prohibited!"

"Received! Understood!"

The conversation over the communicator provided the final commentary on the yacht's fate.

Upon hearing this news, Gu Lang sighed and forcefully pulled his feet out of the mud and sand.

Pushing the heavy oil drums, they walked towards the temporary supply depot.

"None of the vehicles I've driven have ended well. Am I a vehicle killer?"

After making a self-deprecating remark, he looked worriedly at the Lynx assault vehicle beside him.

Just then, a northwest wind blew in, and Gu Lang, feeling the chill, quickly changed his clothes.

After popping a piece of chocolate into his mouth, he picked up the drone remote control and started watching the video he had just filmed.

This is an uninhabited island that is long from east to west and short from north to south, with its highest point being less than 200 meters above sea level and an area of ​​more than 2 square kilometers.

The coastline is winding and dotted with reefs, with only one beach on the south side.

After comparing the shape with the offline map, it can be confirmed that the island is named Xizhai Island.

The island is covered with lush vegetation, and there are no signs of human activity, except for a few abandoned buildings that have long since collapsed.

Realizing that people had once settled here, Gu Lang breathed a sigh of relief, which meant that there must be freshwater resources on the island.

Although I am temporarily trapped on this small island, I should not have any survival problems in the short term.

With this in mind, Gu Lang immediately began drawing a topographical map.

Although the Matrice 4T is not a dedicated surveying machine, its laser ranging module supports real-time accurate marking and measurement, enabling it to perform some basic measurement and area marking tasks.

Following a scale of 1:10,000, Gu Lang began to sketch the outline of the island on an A4 sheet of paper, using 1 centimeter to represent 100 meters of actual distance, and set the coastline to 0 meters.

Then, by observing the changes in vegetation and the shadows on the mountains, one can make a preliminary judgment on the terrain undulations through the contrast between light and dark and the type of vegetation.

Generally, vegetation is shorter and sparser at higher elevations, while it is denser in valleys and shady areas.

He highlighted the several prominent peaks, ridgelines, valleys, and possible gentle slopes he had identified, and then began drawing the profile lines.

At these points, draw short marker lines perpendicular to the profile line to indicate that a contour line may pass through this location.

Connect the marker lines at the same height on different profile lines with a smooth curve.

Then, by using the barometer on the drone to select key points and calculate the altitude, we can use the profile inference method to draw approximate contour lines with a height difference of 10 meters.

While not perfectly accurate, it was sufficient for understanding the general terrain and locating water sources.

Gu Lang circled three "V" shapes and one "U" shape protruding upwards on the contour map. These four locations are the main valley lines on the island.

Freshwater typically flows along valleys, infiltrates, or forms surface runoff, eventually forming streams.

One of the most recent valley lines originates in the north-central part of the island and meanders towards the beach where he is now.

In theory, rainfall would collect along this valley and eventually seep out near the beach, forming a seasonal stream.

Armed with an entrenching tool and a bucket, Gu Lang immediately began his ascent into the interior of the island.

Things went more smoothly than he had expected. Shortly after leaving the beach area, he discovered a clear erosion gully.

The soil was fresh, and there was still a small amount of murky water in the ditch, clearly traces of the heavy rain brought by the typhoon.

I dipped my finger in the water and tasted it. It didn't have a strong salty taste, but it had a very gritty texture and couldn't be drunk directly.

"With water, things will be much easier." His spirits lifted, and he continued his upstream search.

As you go deeper, the ground gradually changes from sand and soil to mixed gravel, and then to solid bedrock.

The vegetation is becoming increasingly dense, requiring the constant clearing of paths with entrenching tools.

After walking about 500 meters north, the view suddenly opened up.

A rocky beach formed by huge piles of rocks appeared before us.

Clear mountain spring water gurgles out from the rock crevices higher up, flowing slowly down the rock walls and crevices.

Dozens of pools of varying sizes have formed in the depressions between the rocks.

The pools were mostly covered with algae and weeds, and the bottom was covered with fallen leaves and silt.

Tiny insects float on the water's surface, and traces of bird droppings can be seen on the rock walls.

This is a typical stagnant pool. Although the water source is clean seepage, the exposed pool is extremely susceptible to pollution.

After observing the area, Gu Lang chose the largest pool as his target for cleaning.

He first used an entrenching tool and his hands to clear away all the weeds and algae around and inside the pool, piling them up at a distance.

Then, he forcefully dug away the stones on the downstream side of the pool, creating an opening to drain the murky water.

After exposing the bottom of the pool, he used an entrenching tool to scrape away a layer of black silt rich in organic matter.

Use cleaned stones to plug the gap again, pour in water from other pools, and repeatedly flush the bottom and walls of the pools.

This process of filling, cleaning, and draining water was repeated three or four times until the pool was finally clean, and the water that was filled again became clear and transparent.

Once you reach this stage, you can safely drink the water after simple filtration when you come here to collect it in the future.