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In the heart of the Sahara Desert in southern Tunisia, 20 kilometers north of the town of Douz, the Sahara Desert Oasis is like a piece of jade left by the gods, lying quietly in the middle of the sand sea. This is not a "safe zone" for tourists to check in, but the life and death intersection of "dealing with the devil" in the words of the Bedouin people - during the day, date palm trees and clear springs weave a mirage-like illusion; at night, the sand dunes will make strange whimpers, the surface temperature drops to freezing point, and you will complete a real desert coming-of-age ceremony in this unknown area illuminated by starlight.
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1. Headlamp (adjustable focal length)
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Don't use a mobile phone flashlight to deal with it! Desert night travel requires a beam with strong penetrating power. Fenix HL60R is recommended, with adjustable spot size: wide spot to observe the terrain, spotlight mode to explore the way, and red flashing signal to ask for help at critical moments.
2. Sand boots vs modified tennis shoes
Professional sand boots can prevent sand from entering, but they are expensive. The local guide taught me how to DIY: wear old tennis shoes, seal the trouser legs and the uppers with silicone, and then wrap them with 3 circles of electrical tape - I personally tested that I walked in the quicksand area for 2 hours without getting any sand.
3. "Three-layer dressing method"
Body layer: Merino wool quick-drying clothes (sweat-wicking and anti-hypothermia)
Middle layer: Down vest (40℃ temperature difference between day and night in the desert)
Outer layer: GTX wind and sandproof jacket (focus on protecting the collar and cuffs)
4. Survival bag (must be hung on the chest)
Folding water bag (3L, 200ml of water per hour for night walks in the desert)
Satellite locator (Garmin inReach Mini, a life-saving device in a signal-free area)
Vacuum suction device for snake venom (desert scorpions are more deadly than rattlesnakes)
22:00-24:00 Exploring the edge of the oasis
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Starting from the only mosque in Douz Town, head north along the "Star and Moon Ancient Road". The first 2 kilometers are a safe area, and you can see the road signs made of palm leaves by the Bedouins under the moonlight. Note: When the shadow of the date palm tree is at an angle of 75° to the ground, you must turn to the northeast - this is the "devil's angle" summarized by the local old man with his blood. If you continue to go straight, you will fall into the quicksand swamp.
00:00-02:00 Break into the "crying sand dunes"
At midnight, the sand dunes begin to "cry" - the change in the groundwater level causes the sand particles to rub and make sounds. At this time, turn on the red light mode of the headlights (not to attract wild animals), and follow the guide to knock on the sand surface with a wooden stick: the empty sound represents quicksand, and the muffled sound is the real thing. We once witnessed a fox digging a hole here, which resulted in a small-scale collapse, and the entire team was forced to retreat 50 meters and detour.
02:00-04:00 Race with the stars
After 2 a.m., the Milky Way is clear enough to be "touched" by hand. This is the most dangerous period - the human body begins to have hallucinations, and the outline of the sand dunes is distorted under the starlight. You must use the "three-point fixation method" to move forward: hold a trekking pole in each hand, and move one foot after stepping firmly before moving the other foot. We once met a lost Dutch backpacker at this stage. He circled on the sand dunes for 3 hours because he was chasing a "mirage".
Quicksand Trap
On the north side of the "Crying Dune", the teammate's left leg suddenly sank. The guide immediately asked us to lie flat on the sand, inserted the trekking pole under his armpit, and slowly applied force like pulling a carrot - the whole process lasted 12 minutes. The teammate's boots were finally left in the sand, but his life was saved.
Venomous Scorpion Attack
At 3 a.m., I felt a stinging pain in my neck when I was tying my shoelaces. The guide shone a flashlight and saw a Palestinian scorpion raising its tail sting. He immediately wrapped his shirt around his hand to catch the scorpion, and asked me to illuminate the wound with a headlamp (high temperature slows down the spread of toxins). Later, we used the tip of a knife to pick out the 4 mm long stinger in the camp, and the anti-venom serum in Lao Zhang's first aid kit saved his life.
Auditory and Visual Hallucinations
Long-term dehydration can cause hearing distortion. We once collectively heard the sound of camel bells and even saw a bonfire at the edge of the oasis - it was actually another hiking team 3 kilometers away. The guide stabbed our philtrum with a camel thorn, using the pain to fight the hallucination: "In the desert, it is better to trust the compass than the eyes!"
"Desert Post Office"
In the deepest part of the oasis, there is a post office built with date palm trunks. The Bedouins use reed stalks to make "hourglass stamps": stuff the parchment roll with the letter into the hollow reed, seal it with beeswax, and then calculate the delivery area based on the time it takes for the sand to leak out. We sent a letter to ourselves, and the guide said: "When the sand runs out, you will receive the blessing of the Sahara."
"Blood Moon Ceremony"
Every month when the full moon comes, the Bedouins will hold a "Blood Moon Ceremony". They piled up gravel on the top of the sand dunes and drew runes with camel blood mixed with sand. The guide warned us not to take photos: "This is a ritual to borrow water from the desert god. The camera flash will anger the god."
When the first ray of sunlight dyed the top of the sand dune red, we finally arrived at the real core of the oasis - a 50-meter-diameter crescent spring, on the surface of which floated a copper pot left by a caravan a hundred years ago. The guide scooped up a bucket of water, and there were three water striders paddling in it: "Look, the desert never really dies." On the way back, I found a series of clear fox footprints on the sand, and next to it was a poem written by the Bedouin on a branch: "The water we borrowed will eventually be returned to the dunes." This night hike made me understand: in the Sahara Desert Oasis, the most dangerous thing is never the desert itself, but the arrogance of human beings towards the unknown.