Nepal is home to network of trails also called the Great Himalaya Trails, an extensive trail system that covers Nepal from Humla and Darchula in the west to Kanchenjunga in the east. The diversity of trekking in Nepal cannot be found in any other region of the world. In fact, the lowest point in Nepal is 59 m above sea-level in the Terai region while the highest point is Everest, 8,848 m above sea-level, the two points are, in a straight line, only 200 kilometres apart.

Trekking in Nepal today is completely different to that of the 1960s. In all the main trekking areas, the National Parks and Conservation Areas lodges have been established where trekkers can find accommodation, food and meet other trekkers and locals along the way. The majority of the trails are well maintained and in many cases are sign-posted.

The three main trekking areas and therefore the most easily accessible are the Everest, Langtang and the Annapurna regions. Annapurna and Langtang have a slight advantage in so much that they can be reached via road connections. Trekkers are of course rewarded when they venture further afield as well! Great Himalaya Trails has extensive information on other trekking regions, which are accessible by domestic flights, such as Kanchenjunga, Makalu, Dolpo, and the Far West. Several days of trekking is required to reach the higher mountain areas from the local centers of population and administration.