Mrs. PTravel and I spent the beginning of January in China. Our visit included Harbin which hosts an annual Ice Festival. You can see the short (4-1/2 minute) video here:

www.travelersvideo.com/Harbin Ice Festival.wmv

or in much lower quality on YouTube, here:

http://www.youtube.com/watch?v=C3bmxc9vHcE

Temperatures were so low that our digital SLR froze and was inoperable. I had to take special precautions with our camcorder to ensure it wasn't damaged, and even then the LCD display wound up freezing (LCD = LIQUID crystal diode), which made framing and composing shots an interesting challenge, as the display was so dim during the day I could barely see it, and at night it gave strange "strobe" effects that, fortunately, don't appear on the video.