In the 1940's the Swiss Army began having soldiers compete in a race held in the Pennine Alps.
This race involves hiking and skiing in a team of three up a giant snowy mountainside.
It was extremely dangerous and could easily turn deadly, so the race was banned in 1949.
In 1984, the race started up again and is held every other year to this day.
The record times for completing the race are:
5 hours 52 minutes 20.7 seconds for a mens team in 2010
7 hours 41 minutes 18 seconds for a women's team in 2010.
Check out these incredible photos by Swiss photographer Jürg Kaufmann of the race....so beautiful!