Hilton Buzz

After spotting her bored at the ball—which may be due to the classical music that used to make her sleep when she was a child, Paris headed to the slopes to celebrate her 26th birthday and perk up her Vienna vacation with some extreme activities.

The snowbound birthday girl was spotted changing for a white coat (from a red top) before riding the snowmobile to symbolize the passing of another year.

[Photo credit: PopSugar]

[tags] paris, paris hilton, vienna opera ball [/tags]