Har Ki Doon Trek Itinerary (7 Days) Day 1: Arrival at Sankri Rest and acclimatize at 1,956 m; trek briefing and preparation. Day 2: Sankri → Taluka / Osla Village Trek through forests and small rivers, overnight camp at Taluka/Osla. Day 3: Taluka / Osla → Har Ki Doon Base Camp Trek along verdant meadows, alpine forests, and river valleys, camp at base. Day 4: Explor... https://www.thinairexpedition.com/har-ki-dun-trek/