What a beautiful picture by Liping Yang ! He took it on February 16, 2011 at the Summer Palace in Beijing. It must be still very cold when the lake is frozen. And although winters are cold, snow is seldom in Bejing. So, it's an event for kids when there is snow and even enough to make a snowman !
However, skiing is possible during winter - with a few fun slopes, but with artifical snow only. (But now, as you can see, with some additional real snow!)