We recommend previous trekking experience, preferably at altitude, at this level. You need complete confidence in your ability to trek for many days over difficult terrain. Extremes of altitude and weather may be encountered, as may the use of ice axes and crampons. Stamina is essential as walking days last six to nine hours or more on occasional days and daily ascents will likely be around 900m to 1000m, perhaps with the odd day ascending around 1100m to 1200m.
1.Tough level treks requires high level of stamina, understanding of Himalayan weather, terrain and basics of low as well as high altitude trekking.
2. Mostly walking time is 6-8 hours but could be more as per situations and circumstances in hand.