The Khardung La Challenge (72 km) is the Highest Ultra Marathon in the World. This race is amongst the Toughest and Ultimate Challenging Endurance Race. The harsh conditions makes this extremely tough as approximately 60kms of the race is above 4000 m (14,000ft).
The Khardung La Challenge begins at Khardung village (3975m / 13,042 ft). The race route involves a gentle but steady climb to the top of Khardungla (5370m), one of the highest motorable passes in the world. From here it is downhill all the way to Leh town (3500m / 11,500ft).