During the journey, I encountered the first light rain, the dripping rain, the cool weather, climbing Yaoquan Mountain, drinking Erlongquan, sweet and cold; and drinking Beijiquan, the water that will be breathing, sour with bubbles, the feeling of childhood sparkling wine, nearby residents and convalescents have been holding large and small containers to receive water, which is said to cure stomach disease, liver cancer, hypertension and low blood pressure bars; walking more than 500 meters in the heat. Underglacier, feel the cold winter, the perennial temperature in the cave is below 5 & #176; to below 12 & #176; scientists have not yet been able to explain, but also the only one in the world! Feel the wonders that volcanoes bring to human beings. Just let nature take its course. Goodbye to Wudalianchi and continue north to Heihe River!