Difficulty of the trekking depends on the region of the trek and duration of it. Shorter treks to be easier while longer / high passes ones require some mentally and physical fitness.
We calculate our trek activity level as following
a) Length of trek and walking day
b) Trail conditions underfoot
c) Average altitude, maximum altitude and average gain/loss per day
d) Likely prevailing weather conditions and temperature range
e) Remoteness of local services and general level of comfort
Grade A – “Easy” Trekking Grade
Grade B – “Moderate”
Grade C - “Challenging”
Grade D – “Challenging Plus”
Grade E – "Tough Trekking"