冬季騎行東北遭遇大雪，零下20度雪地裡露營過夜，試試新爐子取暖

#寒冷騎行挑戰#戶外冬季活動#旅行 Encountering heavy snow during winter cycling in the Northeast, camping overnight in a snowy field at minus 20 degrees Celsius, trying out a new stove for warmth. 【單人單車環華騎行中國】 【Single bicycle ride around China】