Trekking in Nepal can be graded as different levels according to route features and elevation. Grades vary from place to place. Some trekking routes are combined with higher levels of elevation which require some different standards of physical fitness and acclimatization or rest days. Trekking in Nepal can be done by all levels of trekkers; if they think themselves fit and have a strong desire to trek. People suffering from cardiac or respiratory problems should consult to their personal doctor. We like to advise preparation for trekking: morning and evening walks, jogging, stretching, meditation and regular exercise help to make trekking comfortable for all. It is essential to choose a trek that fits your capabilities and present health condition.
Easy or Grade A
Grade A trekking can be ideal for any age group. This type of trekking involves below 3000m of elevation and the duration will be not more than 10 days. Grade A treks are the easiest treks. Walking per day normally does not exceed 5 hours, but it depends upon to your walking speed. These types of trek also allow plenty of opportunities to view the Himalayas and encounter local culture.
Moderate or Grade B
Moderate or Grade B level of trekking holiday involves about two weeks covering elevations of 3000m to 5000m. Generally this type of trek also requires good fitness and physical condition as it involves about 6-7 hours of hiking per day. This type of trek also involves a mixture of some longer and shorter hikes, and trails can be rough, steep and have many ‘ups’ and ‘downs’ with some exposure.
Strenuous or Grade C
Grade C trekking involves 5000m trails with side trips to higher elevations. They are considered to be harder therefore preparation for fitness and good health are essential. You must be very fit for this sort of trip. Those who suffer from asthma, high blood pressure, heart disease or complicated medical conditions related are advised not to undertake a grade C trek.
Very Strenuous or Grade D
Very strenuous grade or grade D treks are best described as Alpine and most strenuous, which require mountaineering skills and knowledge. The elevations range from 4000m to 6000m and approximately 7 hours walking a day. They cover very remote areas, travelling over snow-covered passes altitudes of up to 6000m. You may need to axes and crampons to cross the passes when there is heavy snow.
Challenging or Grade E
Challenging Trekking Grade or Grade E is limited to those with an excellent level of personal experience and fitness, an outstanding sense of humor and high tolerance levels. It is challenging and fascinating trekking and operates up to 6000m. It is the most exciting trekking. This type of trek needs 16- 28 days or more in order to trek at the higher altitudes. During the trek you may have to cross snow - covered passes in very remote areas or climb up to 6000meters in altitude.