New Delhi, Aug. 18 -- Reaching new heights, the Ladakh Marathon will return for its 12th edition from September 11 to 14, featuring its largest field in history with over 6,600 runners from 30 countries worldwide, according to a release from Ladakh Marathon.

Recognised as the world's highest AIMS-certified (Association of International Marathons and Distance Races) marathon, the event will feature six races ranging from a 5 km community run to two gruelling Ultramarathons, the 72 km Khardung La Challenge and the pinnacle of endurance racing, the 122 km Silk Route Ultra.

Spanning the rugged landscapes of Leh and beyond, participants will race alongside the Indus River, through the high-altitude passes of Khardung La and Nubra, and across...