Great Himalayan trails which is the network of extensive trail system covers Nepal from Taplejung in the east to Humla and Darchula in the west. There is vast diversity of trekking in Nepal which is not found in any region of the world. In fact, the lowest point in Nepal in 60 m above the sea-level in the Terai region whereas the highest point is Mt.Everest 8,848m above the seal level. These two points are only 200km apart.
Tribhuvan International Airport located in Kathmandu is only one international airport, from where majority of visitors to Nepal come. In Kathmandu, trekkers need to obtain all the necessary permits and documents either from the trekking agent or from the appropriate offices. All these trekking permits and documents are checked in the trekking trails.
Today, in all the major trekking areas of Nepal, the national park and conservation areas lodges have been established, where trekkers can find food, accommodation and meet other trekkers and local along the way. The majority of trails are sign-posted and well maintained. These trekking lodges are well maintained and have facilities of charging batteries and big villages often possess the facilities of email and internet.
The three main trekking areas which are mostly accessible are the Everest, Langtang and the Annapurna regions. The Annapurna and Langtang can be reached by road as well. Further, Mostly, trekkers fly to Lukla for the Everest trek. However, it can be also reached via Jiri by raod.