Har Ki Dun Trek Itinerary (Short Overview) Day 1: Drive from Dehradun / Sankari → Sankri (Base Village) Day 2: Trek to Osla → Overnight camping Day 3: Osla → Har Ki Dun Valley (Alpine Meadows) Day 4: Explore Har Ki Dun & Surroundings → Optional small peaks Day 5: Trek back to Osla → Overnight camping Day 6: Trek back to Sankri → Drive to Dehradun Trek Distance: ~65 km (roun... https://www.thinairexpedition.com/har-ki-dun-trek/