Mt.Tokachidake (Mt.Tokachi) 146
Temperature: minus 22 degrees Celsius at the Tokachidake Hot Springs (Tokachidake Onsen) and minus 27 degrees Celsius in the KTV (katabatic valley).
It was cold at the foot of the mountain because of the radiative cooling. He heard the sound of frost crack during the climb. The snow was a little soft but mostly compacted. We had a sunshine for a while and the diamond dust falling from the sky reflected it.
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