Nepal has some remote areas, which were restricted for foreigners until 1991 where the entry of foreigners is strictly controlled. These trekking areas are different in many features from ordinary ones .Restricted area trekking trails can be done by tented camp and tea house as well. For the Trekking in restricted region required minimum 2 people in the group. the trekking permit cost is higher than other ordinary trekking region. The main objective of declaring these areas ' restricted' is to protect the natural environment and culture from outside influences. The treks must be fully arranged through registered Trekking Company. It has to be fully equipped with tent, all Support staffs, cooks, etc. The trekking agency arranges the trekking permit through a series of applications and guarantees letters. You cannot trek along in the restricted area.