visiting beijing on 21-27 february 2016

I worked there for three years. It's still cold in late Feb. with the temperature ranging from -3C to 6C. Cloudy days are the majority, and light snow may fall. You should prepare down jacket, sweater, long john, thick pants and thermal baby onesie for your kids.

You are surely allowed to ski resort. But usually they close around late Feb. to early Mar. according to the weather condition. Good luck though!