 The Lungnak river then flows north-westwards along a narrow gorge towards Zanskar's central valley (known locally as gzhung khor), where it unites with the Doda river to form the main Zanskar river.This river then takes a north-eastern course through the dramatic Zanskar Gorge until it joins the Indus near "Nimmu" in Ladakh.Lower (northern) sections of that gorge are popular in summer with tourists making rafting trips, typically from Chiling to Nimmu.