The Antarctic center in Christchurch lets you experience a wind storm in a room with snow on the ground. For me, it was just a reminder of why I moved from the Chicago area :)
There was a little 'slide' along with an igloo and the kids loved it all!
The mural on the back wall was a nice touch.
We also watched a 4D movie that has wonderful pictures of wildlife and scenery from the antarctic area of the world. It was a great experience, so if you get to Christchurch, you should visit here. It has little blue penguins (my pictures are here.) and lots of other interesting information about the antarctic region.