Armed swimming is swimming across rivers and streams while carrying weapons and equipment. Since there are no rivers or streams five kilometers wide nearby, the distance is calculated by length instead.
Additionally, the instructors didn't assign them weapons and equipment, so the weights on Mo Shangjun and Wu Shan are backpacks usually used by Chai Xinyan's group, filled with rocks, weighing 20 kilograms.
Carrying 20 kilograms upstream is clearly no easier than a normal armed swim.
Typically, a five-kilometer armed swim requires at least an hour and a half, but since Mo Shangjun and Wu Shan's difficulty increases, the time may be even longer.
Upstream on the riverbank.
The trainees who reached the destination from the riverbank in advance need to wait in place.
There are two groups gathered on the riverbank.
One group is led by Chai Xinyan, each one tense and expectantly waiting for Wu Shan to be the first to swim upstream from downstream.
