After several days of continuous low temperatures, Su Qingluan, drawing on her northern experience, deduced that the outdoor temperature was definitely around -10 degrees Celsius. While it wasn't the bone-chilling -10 degrees Celsius she'd experienced in her previous life at the northernmost tip of the country, the ice on the river should be strong enough to withstand being trampled on.

However, to be on the safe side, Su Qingluan still planned to squat down on the ice and carefully observe the situation on the ice.

Originally, Su Qingluan planned to go and take a look by herself and then go back, but the two little ones also clamored to go to the river. Su Guangfu and Yang were of course worried about leaving Su Qingluan alone to look after her brother and sister, so they stayed behind as well.

Before allowing her younger brothers and sisters to step onto the ice, Su Qingluan carefully observed the surrounding terrain - the river channel in this section was relatively open, with no sudden narrowing of the river channel or protruding boulders, and there were no bridges.

This means that this section of the river basically does not have the terrain conditions to form a "clear ditch".

The so-called "clearing the ditch" refers to the situation where the water flow in the riverbed suddenly becomes turbulent due to various reasons. Although the surface is frozen due to the low temperature, the water flow is too fast and the long-term erosion of water under the ice surface makes this part of the ice layer thinner and more brittle.

This situation is also known as "clearing the ditch" because it will wash out a "groove" under the ice.

This type of ditch clearing is very dangerous. It is difficult to detect from the surface, but if you step on it, the ice will break and you will fall directly into the water.

Unlike in summer, falling into freezing water in winter is extremely dangerous because the low temperature can paralyze breathing and freeze the body, making it impossible to move freely. Not to mention landlubbers, even those who are good swimmers are likely to drown in such conditions.

Fortunately, such clear ditches are all located in places with fast-flowing water, and this type of terrain can basically be inferred from the surface conditions.

However, to be on the safe side, Su Qingluan personally tried out a circle on the nearby ice surface before defining the approximate range of activities for her brother and sister: "Here, if you want to come up and play, you can. I'll place those stones on the ice, and you can't go outside the range defined by the stones. Got it?"

Yang was still very worried: "Da Ya'er, is this okay? Three days ago, the ice was only a thin layer."

Su Qingluan smiled and said, "Don't worry, mother. Look at the texture on the ice. It's horizontal. This is the texture formed when the ice first freezes. Even if this ice is only an inch thick, people can walk on it - not to mention the two little kids like us, even a big man can do it."

Su Qingluan continued in her mind: "Not to mention people, even an off-road vehicle weighing several tons can move on such an icy surface as if it were flat ground."

Anyway, it doesn't hurt to go fishing today. Su Qingluan thought that since her younger brothers and sisters were here today, they couldn't fish because of the noise, so she might as well play on the ice with them for a while. In her previous life, every winter, the thick layer of ice formed on the surface of the river, which turned it into a ready-made playground.

Shooting ice balls, dog sledding, ice skating, ice slides... Su Qingluan thought of the lively scenes in her previous life, and gradually she felt like having fun.

Although I don't have ice skates now, but...

Su Qingluan took off the outermost layer of non-slip spiked shoes, leaving only her ordinary cotton shoes with thousand-layer soles and stepped onto the ice.

The temperature outside is now much lower than before when the ice melted as soon as the sun came out. There is no chance for a water film to form. Even without the non-slip thousand-layer sole, it will not be too slippery.

Su Qingluan habitually pushed off with her back foot, then quickly brought it together with her front foot, and suddenly she accelerated and slid forward. After doing this a few times, she found the feeling, and this way of "sliding" became smoother.

To be honest, because the thousand-layer sole does not have any anti-slip texture, but the area of ​​contact with the ice surface is much larger than that of real ice skates, so it is relatively more stable than ice skates, but easier to slide on the ice than those ordinary sports shoes in the previous life.

Su Qingluan thought that since there were no ice skates for her to play with, she just "skated on the soles of her shoes" to satisfy her craving.

After getting the elder sister's permission and seeing how much fun she seemed to be skating, the two little ones immediately couldn't stand still and were eager to try playing on the ice.

Su Qingluan turned her head to look at them: "Don't be afraid of falling, but when you fall, you must fall forward, and never tilt your head back!" Although her brother and sister were wearing thick winter hats, and children had soft bones and would not be injured so easily, Su Qingluan was still very cautious.

"You must lie forward on the ice, yes, your body forward!" Su Qingluan looked at her younger brother and sister.

In fact, she had originally thought about telling them in advance, but whether it was her own experience or the lessons learned from others, they all showed one thing: even if you tell them many times in advance, once an emergency occurs and you really fall, all the warnings and key points will be forgotten completely.

The only effective method was to let her brother and sister wrestle more from the moment they stepped onto the ice, and constantly correct their postures until they were both accustomed to the "correct wrestling posture."

Although they didn't know why they had to "lie forward", Su Qingluan's words were unconditionally obeyed by their younger brother and sister. So the two little guys listened to their sister's request and bent forward slightly when standing on the ice, ensuring that they would be in a lying forward position even if they fell.

The same was true for Su Guangfu and Yang. However, they were adults after all, with many concerns and less playful nature. When Su Xuanhe and Su Xueyan started laughing and playing, but couldn't control their legs well and fell one after another, the two of them could only tremble in fear and dared not move easily.

After all, they are more afraid of falling than children - not only because fractures in the elderly are more serious, but also because they are afraid of causing trouble for the children.

So let alone playing on the ice, Su Guangfu and Yang didn't even dare to take off their spikes. They just stared at the three children without blinking, ready to rush over at any time if anything unexpected happened to the three children.

Su Qingluan was naturally not just playing around. After all, she was not a real thirteen or fourteen-year-old girl, so after playing for two rounds, she looked at her younger brother and sister.

"Sister, how do you skate? I want to skate too!" After falling three times in a row, Su Xueyan wanted to cheat and simply sat on the ice and refused to get up.

Su Qingluan laughed and said, "You haven't learned how to use your strength yet - look, your brother is doing it quite well."

Su Xueyan turned her head when she heard this and found that although Su Xuanhe was still sliding all over the place, he was at least able to slide for a distance on his own.

Children are afraid of comparison. The little girl who was sitting on the ground and playing tricks saw that her brother could slide, so she quickly got up and grabbed Su Qingluan's sleeve and said, "Sister, teach me!"