Khardung La Pass is the only road access to the Nubra Valley and is considered as the highest motorable road in the world. The pass is at height of 18,380 ft above sea level and is situated 37 km north of Leh. Khardung La Pass, also known as K-Top, is a gateway to the Nubra and Shyok valleys. Maintained by the Border Roads Organisation for most of the year, the pass remains frozen in the summer.