It is a short cultural trek that takes only seven days, starts from Sundarijal at the eastern end of the Kathmandu Valley and does not climb above 3500m. It makes a loop through the Sherpa-populated Helambu region to the north -east of Kathmandu. The Sherpa people of the Helambu region are friendly and hospitable, just like their better known kinfolk o the Solu Khumbu region. As in Solu Khumbu, the potato is a vitally important crop and not only forms a large part of the local diet but is also exported to the Nepalese lowland in exchange for rice and other produce.