What is it like to walk a hundred kilometers?

I will be very, very tired, so tired that I doubt my life. A 100km hike is equivalent to 400 meters and 2,500 laps on the playground. This amount of exercise is very large and very tiring. As you lose weight, your calf muscles may be sore for several days and may cramp. Although he can exercise to a certain extent, the degree of training is too great and is not conducive to the healthy development of the body.