The Sar Pass is in Parvati Valley of Kullu district of Himachal Pradesh, a state of India. A trek to Sar Pass is organised every year by Youth Hostels Association of India. One batch of 40 to 50 persons starts everyday from 1 May to 31 May. This is one of the most challenging and difficult treks offered by Youth Hostels of India over the years.
Sar, in local dialect, means a lake. While trekking, across the path from Tila Lotni to Biskeri Ridge, one has to pass by a small, (normally) frozen lake (Sar) and hence the name Sar Pass Trek.For the Last 8 years before 2011 the Trek to Sar Pass from the Kasol Valley Base Camp use to go through the Unchdhar, Sheela Village, Gauna Pani, Faul Pani,Zirmi, Tila Lotni - Sar Pass, Biskeri Bandhak Thatch Route, But the Old Trek Route from the Grahan Village restarted from 2011.