In 17 years, my son looked at the map of China and said that he wanted to go to the northeast. Then we flew directly from Wuhan to Harbin in December, and then took the car at the airport all the way to Wudalianchi, Heihe, and Xunke across Xiaoxing'anling to Daping Township. Finally, we stayed at Xiyangyang's house and had a great time. Arrived on the day of arrival in the village accidentally stuck in the car, and later encountered the tractor driven by Xiyangyang's brother to help me get out of sleep, and thank you for the help of friends of Heihe TV station I met. I have the opportunity to go again, especially reminding that we must release water from the upstream power station of the reservoir to see the smog. We saw it early the next morning.