The Engadin Ski Marathon is an annual event in Switzerland, where more than 10,000 skiers take part in a ski marathon over the weekend. It is organized on the second Sunday of March. The 42.2 km race starts in Maloja and rips through some o Switzerland's most stunning landscapes until it finishes in S-Chanf near the Swiss mountain resort of St Moritz. This is one of the extreme marathons in the World. Give a look at these pictures.