He has already asked me for packaging instructions: They said that you should place them in the original box, which you have kept. That's all I have got from them. I hope that you and your child are both well. The sky was dark blue and this is what my sister had told me many years ago when she was there. One of the reasons for that was the altitude of the city, I recall to be it above 2000 meters. The pass was on the way to Lai Chau, and on the day we were there it was foggy on both sides. There were some other travelers at the top and to be honest, the view was even beautiful when it was foggy.
